Cache Drive showing unavailable

dwhite

Dabbler

Oct 2, 2021

I noticed my pool is showing unhealthy. My cache drive is showing unavailable. Any ideas on what may be the issue? I am unable to edit the drive.

NugentS

MVP

Oct 3, 2021

I'd say your cache drive isn't working. The good news is that it isn't pool critical

Supermicro X10DRH-CLN4, 256GB ECC Memory, 2 * E5-2667 V3 in 24 Bay Rack Mount 4U Case
Chelsio T520 CR Dual SFP+ NIC using fibre to the switch
LSI 9305-16i IT Mode SAS HBA
SAS3008 on board in IT Mode
TrueNAS-SCALE (Bluefin)
Boot from mirrored 100GB Intel DC3710
BigPool: 8 * Seagate Exos 12TB HDD in 4 * mirrored pairs + 2 18TB Toshiba MG08 + Optane 900P as SLOG + Mirrored Special (800GB Intel DC S3610)
SSDPool: 6 * DC S3610 1.6TB SSD in 3 * mirrored pairs + Optane 900P as SLOG
AppPool 2 * 512GB Intel DC S3610 as mirrored pair
ScratchSSD 1 * High Endurance SSD for temp files for some applications. No write amplification and I don't care about the data
Use Case: VM Storage, Media Storage and General File Storage
Power: Not measured yet

Truenas-Scale (Bluefin)
Supermicro A2SDi-H-TF, 64GB ECC RAM in Fractal Design R5
Intel DC3700 100Gb as boot disk
Apps: 2 * Samsung SM863 960GB in Mirror
Tank: 7 * Tosh MG09 18TB in Z2 + Intel M10 64GB Optane as L2ARC (Metadata only)
UseCase: Backup via Replication of PrimaryNAS
Power: 100W

Synology 1517+ running DSM
5 * 18TB HDD Toshiba MS09 RAID 6
Why - Cos Synology's Backup for Business can backup PC, Servers, SMB Shares, O365 and VM's. And its free (with the overpriced Synology)
Usecase: Second backup target (File by File) & Docker
Power: 69W

1. https://ixsystems.atlassian.net/browse/NAS-126075 - Have a toggle for the K3S Service, like FTP, iSCSI, NFS etc
2. https://ixsystems.atlassian.net/browse/NAS-125176 - Snapshot as part of OS upgrade
3. https://ixsystems.atlassian.net/browse/NAS-122581 - Consistent disk labels (sda, sdb etc) for use by the API or reporting
4. https://ixsystems.atlassian.net/browse/NAS-121499 - Backup (& Restore) of Container Configuration
5. https://ixsystems.atlassian.net/browse/NAS-119779 - Update version of rclone to 1.6 (or better)
6. https://ixsystems.atlassian.net/browse/NAS-117030 - Replace the word cache in vdev creation and use L2ARC instead
7. https://ixsystems.atlassian.net/browse/NAS-125962 - Change Extend to Attach a Mirror

Important Announcement for the TrueNAS Community.

Cache Drive showing unavailable

dwhite

Dabbler

NugentS

MVP

Similar threads

Important Announcement for the TrueNAS Community.

Cache Drive showing unavailable

dwhite

Dabbler

NugentS

MVP

Important Announcement for the TrueNAS Community.

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