Arch Linux

millus

Member

Registered: 2019-07-21

Posts: 244

SSD "Asking for cache data failed" any harmful?

I noticed in the journal

May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] Unit Not Ready
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] Sense Key : Aborted Command [current] 
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] Add. Sense: Incompatible medium installed
May 27 12:10:32 archlinux kernel: sd 6:0:0:1: [sdb] Media removed, stopped polling
May 27 12:10:32 archlinux kernel: sd 6:0:0:1: [sdb] Attached SCSI removable disk
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] Read Capacity(10) failed: Result: hostbyte=DID_OK driverbyte=DRIVER_OK
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] Sense Key : Aborted Command [current] 
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] Add. Sense: Incompatible medium installed
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] 0 512-byte logical blocks: (0 B/0 B)
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] 0-byte physical blocks
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] Test WP failed, assume Write Enabled
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] Asking for cache data failed
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] Assuming drive cache: write through
May 27 12:10:32 archlinux kernel: sd 6:0:0:0: [sda] Attached SCSI removable disk

where the "Asking for cache data failed" line is displayed in red,
Is that anything harmful or safe to ignore? Everything hard-drive related seems to work just fine.

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 75,681

Re: SSD "Asking for cache data failed" any harmful?

What is sda?
This would be absolutely normal for SD cards, usb keys etc. as they don't have a cache.
If you're worried abotu the drive, https://wiki.archlinux.org/title/SMART

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millus

Member

Registered: 2019-07-21

Posts: 244

Re: SSD "Asking for cache data failed" any harmful?

Well, it's an SSD.

loqs

Member

Registered: 2014-03-06

Posts: 18,885

Re: SSD "Asking for cache data failed" any harmful?

Please post the full ungrepped output of `dmesg` and the output of `smartctl -a /dev/device` after running a SMART self test.

Last edited by loqs (2023-05-28 00:04:39)