USB disk disappears after creating Storage Pool
Posted: 04 Jan 2025, 02:59
Hi folks,
I must be doing something wrong here. Hardware is a F2-423 with a pair of 8TB drives in Raid1 (not TRAID), latest TOS5 installed. I want to add an external USB disk so I can backup one of the volumes in Storage Pool 1 before I add a 256gb SSD and install TOS6.
I have a 4TB drive in a USB3 enclosure, so I plug it into the TNAS and it appears as USB Disk_sdc. So far so good. There's an icon on the top menu bar that says 'USB Disk'.
I create Storage Pool 2 on this disk as 'Single Disk' and the pool is created but... it disappears. I can't create a new volume. I still only have 1 storage pool. In an SSH session I can see that the drive exists and has 4 partitions on it
No volume. Nor can I create one, as far as the web GUI is concerned this drive doesn't exist apart from in the 'Hard Drive' section of control panel.
Is there something I'm missing? I'm slightly bothered that md8 and md9 are part of Storage Pool 1, and if I unplug the drive and reboot the console tells me it's degraded md8 and md9 and repairs them.
This is the full output of lsblk:
I've been a TrueNAS (and FreeNAS) user for a decade so I'm dipping my toes in the water of TOS. So far I've broken it twice.
Cheers
Witchy
*edit* I've noticed the dmesg output matches md1 being a single 4TB drive, with md0 being Storage Pool 1 and its 2 Volumes.
I must be doing something wrong here. Hardware is a F2-423 with a pair of 8TB drives in Raid1 (not TRAID), latest TOS5 installed. I want to add an external USB disk so I can backup one of the volumes in Storage Pool 1 before I add a 256gb SSD and install TOS6.
I have a 4TB drive in a USB3 enclosure, so I plug it into the TNAS and it appears as USB Disk_sdc. So far so good. There's an icon on the top menu bar that says 'USB Disk'.
I create Storage Pool 2 on this disk as 'Single Disk' and the pool is created but... it disappears. I can't create a new volume. I still only have 1 storage pool. In an SSH session I can see that the drive exists and has 4 partitions on it
Code: Select all
sdc 8:32 0 3.7T 0 disk
|-sdc1 8:33 0 285M 0 part
|-sdc2 8:34 0 7.6G 0 part
| `-md9 9:9 0 7.6G 0 raid1 /
|-sdc3 8:35 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sdc4 8:36 0 3.6T 0 part
`-md1 9:1 0 3.6T 0 raid1Is there something I'm missing? I'm slightly bothered that md8 and md9 are part of Storage Pool 1, and if I unplug the drive and reboot the console tells me it's degraded md8 and md9 and repairs them.
This is the full output of lsblk:
Code: Select all
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 7.3T 0 disk
|-sda1 8:1 0 285M 0 part
|-sda2 8:2 0 7.6G 0 part
| `-md9 9:9 0 7.6G 0 raid1 /
|-sda3 8:3 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sda4 8:4 0 7.3T 0 part
`-md0 9:0 0 7.3T 0 raid1
|-vg0-lv1 252:0 0 5.3T 0 lvm /Volume2
`-vg0-lv0 252:1 0 2T 0 lvm /Volume1
sdb 8:16 0 7.3T 0 disk
|-sdb1 8:17 0 285M 0 part
|-sdb2 8:18 0 7.6G 0 part
| `-md9 9:9 0 7.6G 0 raid1 /
|-sdb3 8:19 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sdb4 8:20 0 7.3T 0 part
`-md0 9:0 0 7.3T 0 raid1
|-vg0-lv1 252:0 0 5.3T 0 lvm /Volume2
`-vg0-lv0 252:1 0 2T 0 lvm /Volume1
sdc 8:32 0 3.7T 0 disk
|-sdc1 8:33 0 285M 0 part
|-sdc2 8:34 0 7.6G 0 part
| `-md9 9:9 0 7.6G 0 raid1 /
|-sdc3 8:35 0 1.9G 0 part
| `-md8 9:8 0 1.9G 0 raid1 [SWAP]
`-sdc4 8:36 0 3.6T 0 part
`-md1 9:1 0 3.6T 0 raid1 Cheers
Witchy
*edit* I've noticed the dmesg output matches md1 being a single 4TB drive, with md0 being Storage Pool 1 and its 2 Volumes.
Code: Select all
[81536.792777] sd 3:0:0:0: [sdc] Spinning up disk...
[81537.899269] .ready
[81537.899544] sd 3:0:0:0: [sdc] Very big device. Trying to use READ CAPACITY(16).
[81537.899691] sd 3:0:0:0: [sdc] 7814037168 512-byte logical blocks: (4.00 TB/3.64 TiB)
[81537.899722] sd 3:0:0:0: [sdc] 4096-byte physical blocks
[81537.900088] sd 3:0:0:0: [sdc] Write Protect is off
[81537.900105] sd 3:0:0:0: [sdc] Mode Sense: 47 00 00 08
[81537.900458] sd 3:0:0:0: [sdc] Disabling FUA
[81537.900474] sd 3:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[81537.970451] sdc:
[81537.982006] sd 3:0:0:0: [sdc] Attached SCSI disk
[81539.039284] nfsd: last server has exited, flushing export cache
[81540.285187] NFSD: Using UMH upcall client tracking operations.
[81540.285220] NFSD: starting 90-second grace period (net f0000000)
[81633.584287] nfsd: last server has exited, flushing export cache
[81633.927717] sdc:
[81634.757448] NFSD: Using UMH upcall client tracking operations.
[81634.757480] NFSD: starting 90-second grace period (net f0000000)
[81635.337288] sdc:
[81647.419001] udevd[16510]: error opening ATTR{/sys/devices/virtual/block/md1/md/sync_speed_min} for writing: Permission denied
[81647.419061] udevd[16510]: error opening ATTR{/sys/devices/virtual/block/md1/md/sync_speed_max} for writing: Permission denied
[81647.471970] md/raid1:md1: active with 1 out of 1 mirrors
[81647.472012] md1: detected capacity change from 0 to 7791650816
[81732.874799] sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
[81732.953131] sd 1:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
