Pool Master
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I need to reboot one of my host servers which is the pool master. There are no VMs on it. I went to Change the pool master to another server last night and got the error "Internal Error - Missing Column". The Pool master has been updated along with 2 (Out of 4 total) of the other host have been updated. The host than I am trying to move the pool master to is up to date as well.
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Hi,
You don't switch the master while doing upgrades in a pool. Just reboot it.
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@olivierlambert Ok, just reboot the master won't cause any issues?
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No, it's perfectly fine to reboot the master. Obviously, without HA enabled on the pool.
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Ok. Thank you, I appreciate it!
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I rebooted the pool master. Even though it looks like it came up ok it is not connected to storage. In xcp-ng center it is showing a red X for the SR and this is the errors in dmesg.
[Tue Jul 8 14:43:19 2025] Loading iSCSI transport class v2.0-870. [Tue Jul 8 14:43:19 2025] iscsi: registered transport (tcp) [Tue Jul 8 14:43:20 2025] scsi host7: iSCSI Initiator over TCP/IP [Tue Jul 8 14:43:20 2025] scsi 7:0:0:1: Direct-Access SYNOLOGY Storage 4.0 PQ: 0 ANSI: 5 [Tue Jul 8 14:43:20 2025] scsi 7:0:0:1: alua: supports implicit TPGS [Tue Jul 8 14:43:20 2025] scsi 7:0:0:1: alua: device naa.60014059c706a83d1e77d47a8da5c5d1 port group 0 rel port 1 [Tue Jul 8 14:43:20 2025] sd 7:0:0:1: Attached scsi generic sg1 type 0 [Tue Jul 8 14:43:20 2025] sd 7:0:0:1: alua: transition timeout set to 60 seconds [Tue Jul 8 14:43:20 2025] sd 7:0:0:1: alua: port group 00 state A non-preferred supports TOlUSNA [Tue Jul 8 14:43:25 2025] sd 7:0:0:1: [sdb] 26109542400 512-byte logical blocks: (13.4 TB/12.2 TiB) [Tue Jul 8 14:43:25 2025] sd 7:0:0:1: [sdb] Write Protect is off [Tue Jul 8 14:43:25 2025] sd 7:0:0:1: [sdb] Mode Sense: 43 00 10 08 [Tue Jul 8 14:43:25 2025] sd 7:0:0:1: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA [Tue Jul 8 14:43:25 2025] sd 7:0:0:1: [sdb] Attached SCSI disk [Tue Jul 8 14:43:26 2025] sd 7:0:0:1: [sdb] Synchronizing SCSI cache [Tue Jul 8 14:43:32 2025] Buffer I/O error on dev sdb, logical block 3263692798, async page read [Tue Jul 8 14:43:32 2025] scsi 7:0:0:1: alua: Detached [Tue Jul 8 14:43:40 2025] scsi host7: iSCSI Initiator over TCP/IP [Tue Jul 8 14:43:40 2025] scsi 7:0:0:1: Direct-Access SYNOLOGY Storage 4.0 PQ: 0 ANSI: 5 [Tue Jul 8 14:43:40 2025] scsi 7:0:0:1: alua: supports implicit TPGS [Tue Jul 8 14:43:40 2025] scsi 7:0:0:1: alua: device naa.60014059c706a83d1e77d47a8da5c5d1 port group 0 rel port 1 [Tue Jul 8 14:43:40 2025] sd 7:0:0:1: Attached scsi generic sg1 type 0 [Tue Jul 8 14:43:40 2025] sd 7:0:0:1: alua: transition timeout set to 60 seconds [Tue Jul 8 14:43:40 2025] sd 7:0:0:1: alua: port group 00 state A non-preferred supports TOlUSNA [Tue Jul 8 14:43:46 2025] sd 7:0:0:1: [sdb] 26109542400 512-byte logical blocks: (13.4 TB/12.2 TiB) [Tue Jul 8 14:43:46 2025] sd 7:0:0:1: [sdb] Write Protect is off [Tue Jul 8 14:43:46 2025] sd 7:0:0:1: [sdb] Mode Sense: 43 00 10 08 [Tue Jul 8 14:43:46 2025] sd 7:0:0:1: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA [Tue Jul 8 14:43:49 2025] ldm_validate_partition_table(): Disk read failed. [Tue Jul 8 14:43:49 2025] sdb: unable to read partition table [Tue Jul 8 14:43:49 2025] sd 7:0:0:1: [sdb] Attached SCSI disk [Tue Jul 8 14:43:49 2025] sd 7:0:0:1: [sdb] Synchronizing SCSI cache [Tue Jul 8 14:43:49 2025] scsi 7:0:0:1: alua: Detached
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You have an issue with your storage configuration. It's hard to tell more without knowing more or digging more.
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@olivierlambert Dang ok. I waited a few minute then clicked the Connect in XOA for that host and it connected. Not sure what to do really.