Reboot taking 40 minutes on XGS 3100

Hello JasP ,

Could you validate status of SSD firmware using below KBA?

https://support.sophos.com/support/s/article/KBA-000009132?language=en_US

Also, kindly share the output of the below command from advanced shell:

#cat /log/syslog.log |grep -i "drdy\|i/o\|segfault"

Thanks for the quick response Mayur Makvana 

Hotfixes are enabled (and always have been) and according to the article, the firmware update is included with v21 anyway.

"Disk 1 Status:  The SSD is already on the latest firmware version. No further action is required."

Output from the syslog shows a lot of I/O errors:

2025-01-14 08:00:07Z (none) user.err kernel: [ 1146.940054] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1147.432060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1147.460060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1147.544054] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1148.036060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1148.064059] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1148.852055] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.344059] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.344387] print_req_error: I/O error, dev sda, sector 406391512
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.344390] Buffer I/O error on dev sda9, logical block 39862288, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.372060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.372365] print_req_error: I/O error, dev sda, sector 406391512
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.372366] Buffer I/O error on dev sda9, logical block 39862288, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.404062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.404372] print_req_error: I/O error, dev sda, sector 406391512
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.404373] Buffer I/O error on dev sda9, logical block 39862288, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.436066] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.436381] print_req_error: I/O error, dev sda, sector 406391512
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.436382] Buffer I/O error on dev sda9, logical block 39862288, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1149.756055] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.252060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.252365] print_req_error: I/O error, dev sda, sector 406393048
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.252366] Buffer I/O error on dev sda9, logical block 39862480, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.280060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.280363] print_req_error: I/O error, dev sda, sector 406393048
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.280364] Buffer I/O error on dev sda9, logical block 39862480, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.316060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.316369] print_req_error: I/O error, dev sda, sector 406393048
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.316370] Buffer I/O error on dev sda9, logical block 39862480, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.348060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.348379] print_req_error: I/O error, dev sda, sector 406393048
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.348380] Buffer I/O error on dev sda9, logical block 39862480, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1150.764055] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1151.256060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1151.256368] print_req_error: I/O error, dev sda, sector 406394584
2025-01-14 08:00:07Z (none) user.err kernel: [ 1151.256369] Buffer I/O error on dev sda9, logical block 39862672, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1151.284061] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1151.284365] print_req_error: I/O error, dev sda, sector 406394584
2025-01-14 08:00:07Z (none) user.err kernel: [ 1151.284366] Buffer I/O error on dev sda9, logical block 39862672, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1151.316060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1151.348060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1151.972055] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1152.464060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1152.508062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1152.536060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1152.564060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1152.672053] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1153.164060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1153.192060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1153.580055] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.072060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.100060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.132060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.160059] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.280053] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.772060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.772366] print_req_error: I/O error, dev sda, sector 406399200
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.772367] Buffer I/O error on dev sda9, logical block 39863249, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.800060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.800369] print_req_error: I/O error, dev sda, sector 406399200
2025-01-14 08:00:07Z (none) user.err kernel: [ 1154.800369] Buffer I/O error on dev sda9, logical block 39863249, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.184055] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.676060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.676374] print_req_error: I/O error, dev sda, sector 406400728
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.676375] Buffer I/O error on dev sda9, logical block 39863440, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.704060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.704375] print_req_error: I/O error, dev sda, sector 406400728
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.704376] Buffer I/O error on dev sda9, logical block 39863440, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.740062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.740367] print_req_error: I/O error, dev sda, sector 406400728
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.740368] Buffer I/O error on dev sda9, logical block 39863440, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.768060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.768373] print_req_error: I/O error, dev sda, sector 406400728
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.768374] Buffer I/O error on dev sda9, logical block 39863440, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1155.892054] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1156.384060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1156.384372] print_req_error: I/O error, dev sda, sector 406400744
2025-01-14 08:00:07Z (none) user.err kernel: [ 1156.384373] Buffer I/O error on dev sda9, logical block 39863442, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1156.412059] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1156.412376] print_req_error: I/O error, dev sda, sector 406400744
2025-01-14 08:00:07Z (none) user.err kernel: [ 1156.412377] Buffer I/O error on dev sda9, logical block 39863442, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1157.000054] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1157.492060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1157.492374] print_req_error: I/O error, dev sda, sector 406403800
2025-01-14 08:00:07Z (none) user.err kernel: [ 1157.492375] Buffer I/O error on dev sda9, logical block 39863824, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1157.520060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1157.520374] print_req_error: I/O error, dev sda, sector 406403800
2025-01-14 08:00:07Z (none) user.err kernel: [ 1157.520375] Buffer I/O error on dev sda9, logical block 39863824, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1157.552062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1157.580061] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1157.704054] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1158.196060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1158.224060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1158.304060] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1158.796060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1158.824060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1159.112054] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1159.604060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1159.632060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1159.664063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1159.692061] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.016055] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.508061] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.508369] print_req_error: I/O error, dev sda, sector 406406872
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.508370] Buffer I/O error on dev sda9, logical block 39864208, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.536060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.536368] print_req_error: I/O error, dev sda, sector 406406872
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.536369] Buffer I/O error on dev sda9, logical block 39864208, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.568063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.568371] print_req_error: I/O error, dev sda, sector 406406872
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.568372] Buffer I/O error on dev sda9, logical block 39864208, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.596067] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.596380] print_req_error: I/O error, dev sda, sector 406406872
2025-01-14 08:00:07Z (none) user.err kernel: [ 1160.596381] Buffer I/O error on dev sda9, logical block 39864208, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.124055] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.616060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.616374] print_req_error: I/O error, dev sda, sector 406409960
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.616374] Buffer I/O error on dev sda9, logical block 39864594, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.644061] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.644375] print_req_error: I/O error, dev sda, sector 406409960
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.644376] Buffer I/O error on dev sda9, logical block 39864594, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.672067] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.672383] print_req_error: I/O error, dev sda, sector 406409960
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.672384] Buffer I/O error on dev sda9, logical block 39864594, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.700060] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.700369] print_req_error: I/O error, dev sda, sector 406409960
2025-01-14 08:00:07Z (none) user.err kernel: [ 1161.700369] Buffer I/O error on dev sda9, logical block 39864594, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.024061] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.516062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.516377] print_req_error: I/O error, dev sda, sector 423003344
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.516379] Buffer I/O error on dev sda9, logical block 41938767, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.544062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.544377] print_req_error: I/O error, dev sda, sector 423003344
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.544377] Buffer I/O error on dev sda9, logical block 41938767, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.576065] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.576373] print_req_error: I/O error, dev sda, sector 423003344
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.576374] Buffer I/O error on dev sda9, logical block 41938767, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.604061] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.604368] print_req_error: I/O error, dev sda, sector 423003344
2025-01-14 08:00:07Z (none) user.err kernel: [ 1219.604369] Buffer I/O error on dev sda9, logical block 41938767, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1220.628057] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.120063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.120379] print_req_error: I/O error, dev sda, sector 423009480
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.120380] Buffer I/O error on dev sda9, logical block 41939534, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.148062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.148378] print_req_error: I/O error, dev sda, sector 423009480
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.148379] Buffer I/O error on dev sda9, logical block 41939534, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.176063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.176375] print_req_error: I/O error, dev sda, sector 423009480
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.176376] Buffer I/O error on dev sda9, logical block 41939534, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.208063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.208376] print_req_error: I/O error, dev sda, sector 423009480
2025-01-14 08:00:07Z (none) user.err kernel: [ 1221.208377] Buffer I/O error on dev sda9, logical block 41939534, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1222.432058] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1222.924062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1222.924371] print_req_error: I/O error, dev sda, sector 423015648
2025-01-14 08:00:07Z (none) user.err kernel: [ 1222.924372] Buffer I/O error on dev sda9, logical block 41940305, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1222.952063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1222.952371] print_req_error: I/O error, dev sda, sector 423015648
2025-01-14 08:00:07Z (none) user.err kernel: [ 1222.952372] Buffer I/O error on dev sda9, logical block 41940305, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1222.984064] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1223.016063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1223.336058] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1223.828068] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1223.856065] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1223.888063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1223.924064] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.240057] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.732063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.732372] print_req_error: I/O error, dev sda, sector 423018712
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.732373] Buffer I/O error on dev sda9, logical block 41940688, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.760062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.760368] print_req_error: I/O error, dev sda, sector 423018712
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.760369] Buffer I/O error on dev sda9, logical block 41940688, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.788063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.788378] print_req_error: I/O error, dev sda, sector 423018712
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.788379] Buffer I/O error on dev sda9, logical block 41940688, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.820063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.820376] print_req_error: I/O error, dev sda, sector 423018712
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.820376] Buffer I/O error on dev sda9, logical block 41940688, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1224.944056] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1225.436062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1225.436367] print_req_error: I/O error, dev sda, sector 423018728
2025-01-14 08:00:07Z (none) user.err kernel: [ 1225.436368] Buffer I/O error on dev sda9, logical block 41940690, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1225.464062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1225.464376] print_req_error: I/O error, dev sda, sector 423018728
2025-01-14 08:00:07Z (none) user.err kernel: [ 1225.464377] Buffer I/O error on dev sda9, logical block 41940690, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.052058] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.544062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.544370] print_req_error: I/O error, dev sda, sector 423021784
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.544371] Buffer I/O error on dev sda9, logical block 41941072, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.572063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.572378] print_req_error: I/O error, dev sda, sector 423021784
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.572379] Buffer I/O error on dev sda9, logical block 41941072, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.604064] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.604374] print_req_error: I/O error, dev sda, sector 423021784
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.604375] Buffer I/O error on dev sda9, logical block 41941072, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.632062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.632370] print_req_error: I/O error, dev sda, sector 423021784
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.632371] Buffer I/O error on dev sda9, logical block 41941072, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1226.752056] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1227.244063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1227.272062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1227.656056] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1228.148063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1228.176061] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1228.204063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1228.240064] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1228.364056] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1228.856062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1228.884062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1229.468057] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1229.964062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1229.964371] print_req_error: I/O error, dev sda, sector 423026408
2025-01-14 08:00:07Z (none) user.err kernel: [ 1229.964372] Buffer I/O error on dev sda9, logical block 41941650, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1229.992063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1229.992377] print_req_error: I/O error, dev sda, sector 423026408
2025-01-14 08:00:07Z (none) user.err kernel: [ 1229.992378] Buffer I/O error on dev sda9, logical block 41941650, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.028069] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.028387] print_req_error: I/O error, dev sda, sector 423026408
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.028388] Buffer I/O error on dev sda9, logical block 41941650, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.056063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.056367] print_req_error: I/O error, dev sda, sector 423026408
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.056367] Buffer I/O error on dev sda9, logical block 41941650, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.376057] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.868062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.868374] print_req_error: I/O error, dev sda, sector 423027928
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.868375] Buffer I/O error on dev sda9, logical block 41941840, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.896063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.896370] print_req_error: I/O error, dev sda, sector 423027928
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.896371] Buffer I/O error on dev sda9, logical block 41941840, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.924063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.924378] print_req_error: I/O error, dev sda, sector 423027928
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.924379] Buffer I/O error on dev sda9, logical block 41941840, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.964062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.964371] print_req_error: I/O error, dev sda, sector 423027928
2025-01-14 08:00:07Z (none) user.err kernel: [ 1230.964372] Buffer I/O error on dev sda9, logical block 41941840, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1231.376058] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1231.868063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1231.868377] print_req_error: I/O error, dev sda, sector 423029472
2025-01-14 08:00:07Z (none) user.err kernel: [ 1231.868378] Buffer I/O error on dev sda9, logical block 41942033, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1231.896062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1231.896372] print_req_error: I/O error, dev sda, sector 423029472
2025-01-14 08:00:07Z (none) user.err kernel: [ 1231.896372] Buffer I/O error on dev sda9, logical block 41942033, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1231.924061] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1231.952063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1232.084062] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1232.576062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1232.604064] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1232.988060] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1233.480063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1233.508069] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1233.544062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1233.572063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1234.196058] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1234.688063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1234.716063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1234.744068] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1234.776062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.100057] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.592062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.592380] print_req_error: I/O error, dev sda, sector 423035624
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.592381] Buffer I/O error on dev sda9, logical block 41942802, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.620069] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.620380] print_req_error: I/O error, dev sda, sector 423035624
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.620381] Buffer I/O error on dev sda9, logical block 41942802, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.652065] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.652372] print_req_error: I/O error, dev sda, sector 423035624
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.652373] Buffer I/O error on dev sda9, logical block 41942802, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.684063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.684370] print_req_error: I/O error, dev sda, sector 423035624
2025-01-14 08:00:07Z (none) user.err kernel: [ 1235.684371] Buffer I/O error on dev sda9, logical block 41942802, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1236.508058] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.000063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.000371] print_req_error: I/O error, dev sda, sector 423040216
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.000372] Buffer I/O error on dev sda9, logical block 41943376, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.028062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.028369] print_req_error: I/O error, dev sda, sector 423040216
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.028370] Buffer I/O error on dev sda9, logical block 41943376, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.064064] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.064385] print_req_error: I/O error, dev sda, sector 423040216
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.064386] Buffer I/O error on dev sda9, logical block 41943376, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.100063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.100377] print_req_error: I/O error, dev sda, sector 423040216
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.100379] Buffer I/O error on dev sda9, logical block 41943376, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.212057] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.704062] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.704369] print_req_error: I/O error, dev sda, sector 423040224
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.704370] Buffer I/O error on dev sda9, logical block 41943377, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.732063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.732370] print_req_error: I/O error, dev sda, sector 423040224
2025-01-14 08:00:07Z (none) user.err kernel: [ 1237.732370] Buffer I/O error on dev sda9, logical block 41943377, async page read
2025-01-14 08:00:07Z (none) user.err kernel: [ 1238.916058] ata1.00: status: { DRDY }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1239.408064] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1239.440063] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1239.472064] ata1.00: status: { DRDY ERR }
2025-01-14 08:00:07Z (none) user.err kernel: [ 1239.500062] ata1.00: status: { DRDY ERR }

You could put a Serial Console on it and dump the session for next time (or to reproduce it).

https://support.sophos.com/support/s/article/KBA-000003810?language=en_US

MobaxTerm gives option to record the entire session. I have even a Raspberry PI, which dumps all console output (from USB) to a log file (very handy for this subject in general, not only for Sophos). 

Additionally, do you have this option enabled on Console? https://docs.sophos.com/nsg/sophos-firewall/21.0/help/en-us/webhelp/onlinehelp/CommandLineHelp/DeviceConsole/SystemCommands/index.html#fsck-on-nextboot 

No. I did wonder if it was a 'chkdsk' type activity but I've never enabled that command and have checked it is currently set to Off.

I can do this but it will have to wait until I have swapped it out of production. The I/O errors from the log don't look good and I can't afford to be offline 40 minutes every time I try something. Access to everything goes through the XGS, not just the WAN.

I like the idea of the raspberry PI but I don't have enough knowledge to set one up easily and it wouldn't be worth the time investment to learn how for how often I would use it. I'll just have to make do with a boring old laptop. Sounds neat though.

The first step would be to know, what the appliances does, when it boots. 
It sounds to me like extensive checkups. Because your log will indicate when "Linux Kernel" is loaded, and if your time is boot+40 minutes in the logs, that indicates, the system is not loading Linux and doing checkups all the time.

The serial session will give more insight, what the appliance is doing.

You do not have a HA Cluster? Because it would be interesting to know, if both appliances have the same issue.