ファイルシステムが読み取り専用になる

Issue

• ストレージ (マルチパスデバイス) へのパスが失われた後、ファイルシステムが読み取り専用で再マウントされました。
• 影響を受けているファイルシステム内のファイルにアクセスすると、'Read-only file system' エラーが表示されます。

Feb 20 08:48:25 HOSTNAME multipathd: checker failed path 8:48 in map mpath1 
Feb 20 08:48:25 HOSTNAME multipathd: mpath1: remaining active paths: 1 

Feb 23 20:49:45 HOSTNAME multipathd: sdb: readsector0 checker reports path is down 
Feb 23 20:49:45 HOSTNAME multipathd: checker failed path 8:16 in map mpath1 
Feb 23 20:49:45 HOSTNAME kernel: device-mapper: multipath: Failing path 8:16.
Feb 23 20:49:45 HOSTNAME multipathd: mpath1: remaining active paths: 1 
Feb 23 20:49:45 HOSTNAME multipathd: sdd: readsector0 checker reports path is down 
Feb 23 20:49:45 HOSTNAME multipathd: checker failed path 8:48 in map mpath1 
Feb 23 20:49:45 HOSTNAME kernel: device-mapper: multipath: Failing path 8:48.
Feb 23 20:49:45 HOSTNAME multipathd: mpath1: remaining active paths: 0 
Feb 23 20:49:45 HOSTNAME multipathd: dm-5: add map (uevent) 
Feb 23 20:49:45 HOSTNAME multipathd: dm-5: devmap already registered 
Feb 23 20:49:45 HOSTNAME multipathd: dm-5: add map (uevent) 
Feb 23 20:49:45 HOSTNAME multipathd: dm-5: devmap already registered 
Feb 23 20:49:48 HOSTNAME kernel: Aborting journal on device dm-6.
Feb 23 20:49:48 HOSTNAME kernel: Buffer I/O error on device dm-6, logical block 1545
Feb 23 20:49:48 HOSTNAME kernel: lost page write due to I/O error on dm-6
Feb 23 20:49:48 HOSTNAME kernel: ext3_abort called.
Feb 23 20:49:48 HOSTNAME kernel: EXT3-fs error (device dm-6): ext3_journal_start_sb: Detected aborted journal
Feb 23 20:49:48 HOSTNAME kernel: Remounting filesystem read-only
Feb 23 20:49:50 HOSTNAME multipathd: sdb: readsector0 checker reports path is up 
Feb 23 20:49:50 HOSTNAME multipathd: 8:16: reinstated 
Feb 23 20:49:50 HOSTNAME multipathd: mpath1: remaining active paths: 1 
Feb 23 20:49:50 HOSTNAME multipathd: sdd: readsector0 checker reports path is up 
Feb 23 20:49:50 HOSTNAME multipathd: 8:48: reinstated 
Feb 23 20:49:50 HOSTNAME multipathd: mpath1: remaining active paths: 2 
Feb 23 20:49:50 HOSTNAME multipathd: dm-5: add map (uevent) 
Feb 23 20:49:50 HOSTNAME multipathd: dm-5: devmap already registered 
Feb 23 20:49:50 HOSTNAME multipathd: dm-5: add map (uevent) 
Feb 23 20:49:50 HOSTNAME multipathd: dm-5: devmap already registered 
Feb 23 20:49:57 HOSTNAME CA eHealth SystemEDGE[26318]: sysedge: failed to open /proc/net/snmp6, 2