Unsafe shutdowns, Intel 750 SSD

[trumee]

Hello,

I am using a Intel 750 SSD AIC as an SLOG. Each time i poweroff the server the 'Unsafe Shutdowns' counter increments for the SSD. Is there anyway to resolve this?

Code:

=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

SMART/Health Information (NVMe Log 0x02, NSID 0xffffffff)
Critical Warning:  0x00
Temperature:  36 Celsius
Available Spare:  100%
Available Spare Threshold:  10%
Percentage Used:  0%
Data Units Read:  331 [169 MB]
Data Units Written:  424,503 [217 GB]
Host Read Commands:  4,052
Host Write Commands:  5,612,583
Controller Busy Time:  0
Power Cycles:  10
Power On Hours:  317
Unsafe Shutdowns:  7
Media and Data Integrity Errors:  0
Error Information Log Entries:  0

Error Information (NVMe Log 0x01, max 64 entries)
No Errors Logged

 

[maglin]

It looks like your slog isn't really being used. Or am I misinterpreting the data units read? Sorry can't help with the original question.


Sent from my iPhone using Tapatalk

 

[wtfR6a]

SLOG is primarily written to, not read from.
I have the same issue on my P3700's/750's.

 

[trumee]

SLOG is working fine and in use.

Code:

# zpool status
  pool: tank
 state: ONLINE
  scan: resilvered 46.4M in 0h0m with 0 errors on Sun Jul 31 17:21:54 2016
config:

        NAME               STATE     READ WRITE CKSUM
        tank               ONLINE       0     0     0
          mirror-0         ONLINE       0     0     0
            gpt/disk0.eli  ONLINE       0     0     0
            gpt/disk1.eli  ONLINE       0     0     0
        logs
          gpt/slog         ONLINE       0     0     0

errors: No known data errors

 

[Stux]

My guess, the device is not being 'shutdown' at shutdown.

Wouldn't this be an OS/driver issue?

Perhaps a bug report?

 

[trumee]

My guess, the device is not being 'shutdown' at shutdown.

Wouldn't this be an OS/driver issue?

Perhaps a bug report?

Done