エラー再発

2016年12月28日

1日に対応したGT110bの外付け3TBドライブにおいて

XFS (sde1): xfs_log_force: error 5 returned.

とか

end_request: I/O error, dev sde, sector 2269200832

といったエラーが再発。

HDDケースを2010年5月調達のコレガCG-HDC2EU3100から、玄人志向GW3.5AX2-SU3/REV2.0に喚装してみたのだが、どうやら中身である2009年調達のWD15EADSがボチボチ寿命と言うことだろう。

とは言え、はいそうですかと新しくHDDを調達するのも癪なので、WD15EADSをミラーリングで再利用してみる事に。GW3.5AX2-SU3/REV2.0のDIPスイッチを操作した後に電源を入れてRESETボタンを長押し。LEDの点滅が収まれば構成完了という事で、改めてUSBケーブルを接続。

早速partedを起動してみると**“パーティションテーブルが破損している”**と言われたが、元々がRAID0構成で2倍のサイズになってたので無理からぬ事だ。gdiskでキレイにクリーンアップ。

yano@GT110b:~$ sudo `parted` /dev/sde
GNU Parted 2.3
Using /dev/sde
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Warning: /dev/sde contains GPT signatures, indicating that it has a GPT table.  However, it does not have a valid fake msdos partition table, as it should.  Perhaps it was corrupted -- possibly by a program that doesn't understand GPT partition tables.  Or **perhaps you deleted the GPT table**, and are now using an msdos partition table.  Is this a GPT partition table?
Yes/No? Yes
**Error: Both the primary and backup GPT tables are corrupt.**  Try making a fresh table, and using Parted's rescue feature to recover partitions.
(parted) q
yano@GT110b:~$ sudo `gdisk` /dev/sde
GPT fdisk (gdisk) version 0.8.8
**Warning! Disk size is smaller than the main header indicates!** Loading secondary header from the last sector of the disk! You should use 'v' to verify disk integrity, and perhaps options on the experts' menu to repair the disk.
Caution: invalid backup GPT header, but valid main header; regenerating backup header from main header.
Caution! After loading partitions, the CRC doesn't check out!
Warning! One or more CRCs don't match. You should repair the disk!
Partition table scan:
  MBR: not present
  BSD: not present
  APM: not present
  **GPT: damaged**
Found invalid MBR and corrupt GPT. What do you want to do? (Using the GPT MAY permit recovery of GPT data.)
 1 - Use current GPT
 2 - Create blank GPT
Your answer: 2
Command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING PARTITIONS!!
Do you want to proceed? (Y/N): y
OK; writing new GUID partition table (GPT) to /dev/sde.
The operation has completed successfully.
yano@GT110b:~$

あとは、partedで普通にxfsパーティションを作成。

yano@GT110b:~$ sudo `parted` /dev/sde
GNU Parted 2.3
Using /dev/sde
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) p
Model: Prolific RAID1 (scsi)
Disk /dev/sde: 1500GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number  Start  End  Size  File system  Name  Flags
(parted) unit GB
(parted) mkpart GW3.5AX2-SU3/REV2.0 xfs 0 1501
(parted) print
Model: Prolific RAID1 (scsi)
Disk /dev/sde: 1500GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number  Start   End     Size    File system  Name     Flags
 1      0.00GB  1500GB  1500GB               GW3.5AX2-SU3/REV2.0
(parted) q
Information: You may need to update /etc/fstab.
yano@GT110b:~$ sudo `mkfs.xfs` /dev/sde1
meta-data=/dev/sde1              isize=256    agcount=4, agsize=91571072 blks
         =                       sectsz=512   attr=2, projid32bit=0
data     =                       bsize=4096   blocks=366284288, imaxpct=5
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal log           bsize=4096   blocks=178849, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
yano@GT110b:~$ sudo `blkid` -o value -s UUID /dev/sde1
545ea6a8-41a9-41f8-bb49-a38c9c5093f3
yano@GT110b:~$