spudleymcdudley
Cadet
- Joined
- Apr 16, 2012
- Messages
- 4
Hi,
Have searched about and can't seem to find much on troubleshooting iSCSI problems so hopefuly someone can help.
Basically have 4 ZFS volumes, 4 device extents, 4 targets and 4 Associated targets linking extent to target. The targets are accessed accross 4 different servers, each target is only mapped once. Everything works fine until a large operation is carried out. For example trying to copy several hunderd GB from a seperate CIFS share to freenas, or trying to run a DB check tool on data stored on one of the freenas volumes. Basically what happens when a large operation is carried out is that all the iSCSI drives dissapear from the servers they are mapped on, they cannot be brought back by restarting the iSCSI initiator and a only a manual reboot of the box brings them back (not even remote reboot works, despite the interface still being available and the system allowing me to choose the option). Aditionally there are 4 disks in the RAID, when freenas falls over only 2 are shown when I go 'view disks'. After hard reboot all 4 are back.
System is as below.
Any help/ideas would be greatly appreciated :)
Hostname ldn-storage02.obexchange
FreeNAS Build FreeNAS-8.0.3-RELEASE-p1-x64 (9591)
Platform AMD Athlon(tm) II Neo N36L Dual-Core Processor
Memory 8049MB
System Time Mon Apr 16 03:21:49 2012
Uptime 3:21AM up 1 day, 2:06, 0 users
Load Average 0.00, 0.00, 0.00
OS Version FreeBSD 8.2-RELEASE-p6
Have searched about and can't seem to find much on troubleshooting iSCSI problems so hopefuly someone can help.
Basically have 4 ZFS volumes, 4 device extents, 4 targets and 4 Associated targets linking extent to target. The targets are accessed accross 4 different servers, each target is only mapped once. Everything works fine until a large operation is carried out. For example trying to copy several hunderd GB from a seperate CIFS share to freenas, or trying to run a DB check tool on data stored on one of the freenas volumes. Basically what happens when a large operation is carried out is that all the iSCSI drives dissapear from the servers they are mapped on, they cannot be brought back by restarting the iSCSI initiator and a only a manual reboot of the box brings them back (not even remote reboot works, despite the interface still being available and the system allowing me to choose the option). Aditionally there are 4 disks in the RAID, when freenas falls over only 2 are shown when I go 'view disks'. After hard reboot all 4 are back.
System is as below.
Any help/ideas would be greatly appreciated :)
Hostname ldn-storage02.obexchange
FreeNAS Build FreeNAS-8.0.3-RELEASE-p1-x64 (9591)
Platform AMD Athlon(tm) II Neo N36L Dual-Core Processor
Memory 8049MB
System Time Mon Apr 16 03:21:49 2012
Uptime 3:21AM up 1 day, 2:06, 0 users
Load Average 0.00, 0.00, 0.00
OS Version FreeBSD 8.2-RELEASE-p6
