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2021-01-11(Mon) [ZFS] HDD換装 4TB->8TB [長年日記]

10月21日の日記以来、だましだまし使ってきたSeagate Desktop HDD ST-4000DM000だけど、ついに

This message was generated by the smartd daemon running on:

host name: on-o.com

DNS domain: on-o.com

The following warning/error was logged by the smartd daemon:

Device: /dev/sdc [SAT], 16 Offline uncorrectable sectors

Device info:

ST4000DM000-1F2168, S/N:Z3123535Z, WWN:5-000c50-026c09fdb, FW:CC54, 4.00 TB

For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.

The original message about this issue was sent at Sat Jan 9 19:44:02 2021 JS

Another message will be sent in 24 hours if the problem persists.

なんてメールが来るようになって、ZFS scrubでも

ZFS has finished a scrub:

eid: 33

class: scrub_finish

host: on-o.com

time: 2021-01-11 12:44:03+0900

pool: tank

state: DEGRADED

status: One or more devices has experienced an unrecoverable error. An

attempt was made to correct the error. Applications are unaffected.

action: Determine if the device needs to be replaced, and clear the errors

using 'zpool clear' or replace the device with 'zpool replace'.

see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-9P

scan: scrub repaired 248K in 08:16:54 with 0 errors on Mon Jan 11 12:44:03 2021

config:

NAME STATE READ WRITE CKSUM

tank DEGRADED 0 0 0

mirror-0 DEGRADED 0 0 0

sdc1 DEGRADED 7 0 14 too many errors

sdb1 ONLINE 0 0 0

cache

sda3 ONLINE 0 0 0

errors: No known data errors

となっていて復旧不可能。HDD自体は生きているけど、不良セクターが多すぎているらしい。もう、三年半以上使っているので寿命かな。

そこで、今回こわれたHDDを入れた20017年5月31日の日記や、今回生きている、2018年11月の日記、さらにそれの前の2013年12月28日の日記でもやっている定例業務だから、手慣れたもので、HDDを新しいSeagate Barracuda ST8000DM004に換装して

# zpool replace -o ashift=12 tank 9428551599581464311 /dev/sdc1

# zpool status -v

pool: tank

state: DEGRADED

status: One or more devices is currently being resilvered. The pool will

continue to function, possibly in a degraded state.

action: Wait for the resilver to complete.

scan: resilver in progress since Mon Jan 11 17:24:14 2021

197G scanned at 2.95G/s, 392K issued at 5.85K/s, 2.42T total

0B resilvered, 0.00% done, no estimated completion time

config:

NAME STATE READ WRITE CKSUM

tank DEGRADED 0 0 0

mirror-0 DEGRADED 0 0 0

replacing-0 DEGRADED 0 0 0

9428551599581464311 UNAVAIL 0 0 0 was /dev/sdc1/old

sdc1 ONLINE 0 0 0

sdb1 ONLINE 0 0 0

cache

sda3 ONLINE 0 0 0

errors: No known data errors

という感じでreplace中。

ashift=12 で4KBを明示したのは雰囲気

# zdb|grep ashift

ashift: 12

そもそも、tankは4KBセクターだった。

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