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Nexus 7000 remounting filesystem read-only

Answered Question
Aug 1st, 2012
User Badges:

Hi All,


A few moments ago we noticed the following on one of our Nexus 7K devices. Google didn't deliver much as to what might have gone amiss. Does anybody know how to fix this?


2012 Aug  1  14:08:33 NCSP2002 Aug  1 14:08:32 %KERN-0-SYSTEM_MSG: ide2: hard reset  timed-out, status=0x80 - kernel
2012 Aug  1 14:08:32 NCSP2002  %MODULE-4-MOD_WARNING: Module 2 (serial: XXXXXXXXXXX) reported warning due to  EOBC hear
tbeat failure in device 10 (device error 0xc0005045)
2012 Aug  1  14:08:32 NCSP2002 %MODULE-4-MOD_WARNING: Module 1 (serial: XXXXXXXXXXX) reported  warning due to EOBC hear
tbeat failure in device 10 (device error  0xc0005045)
2012 Aug  1 14:08:39 NCSP2002 Aug  1 14:08:37 %KERN-3-SYSTEM_MSG:  hde: drive not ready for command - kernel
2012 Aug  1 14:08:37 NCSP2002  %VPC-5-PEER_KEEP_ALIVE_RECV_INT_LATEST: In domain 1, VPC peer-keepalive received  on int
erface mgmt0
2012 Aug  1 14:08:37 NCSP2002  %VPC-2-PEER_KEEP_ALIVE_RECV_FAIL: In domain 1, VPC peer keep-alive receive has  failed
2012 Aug  1 14:08:37 NCSP2002 %VPC-5-PEER_KEEP_ALIVE_RECV_INT_LATEST:  In domain 1, VPC peer-keepalive received on int
erface mgmt0
2012 Aug  1  14:08:37 NCSP2002 %VPC-5-PEER_KEEP_ALIVE_RECV_SUCCESS: In domain 1, vPC peer  keep-alive receive is succes
sful
2012 Aug  1 14:09:12 NCSP2002 Aug  1  14:09:11 %KERN-0-SYSTEM_MSG: ide2: hard reset timed-out, status=0x80 -  kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1 14:09:11 %KERN-3-SYSTEM_MSG:  end_request: I/O error, dev hde, sector 42727 - ker
nel
2012 Aug  1  14:09:13 NCSP2002 Aug  1 14:09:11 %KERN-3-SYSTEM_MSG: Buffer I/O error on device  hde1, logical block 5333
- kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1  14:09:11 %KERN-3-SYSTEM_MSG: Aborting journal on device hde1. - kernel
2012  Aug  1 14:09:13 NCSP2002 Aug  1 14:09:11 %KERN-3-SYSTEM_MSG: end_request: I/O  error, dev hde, sector 10645311 -
kernel
2012 Aug  1 14:09:13 NCSP2002  Aug  1 14:09:11 %KERN-3-SYSTEM_MSG: Buffer I/O error on device hde1, logical  block 1330
656 - kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1 14:09:11  %KERN-3-SYSTEM_MSG: end_request: I/O error, dev hde, sector 10645319  -
kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1 14:09:11 %KERN-3-SYSTEM_MSG:  Buffer I/O error on device hde1, logical block 1330
657 - kernel
2012 Aug   1 14:09:13 NCSP2002 Aug  1 14:09:11 %KERN-3-SYSTEM_MSG: end_request: I/O error,  dev hde, sector 4231 - kern
el
2012 Aug  1 14:09:13 NCSP2002 Aug  1  14:09:11 %KERN-3-SYSTEM_MSG: Buffer I/O error on device hde1, logical block  521
- kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1 14:09:11  %KERN-0-SYSTEM_MSG: journal commit I/O error - kernel
2012 Aug  1 14:09:13  NCSP2002 Aug  1 14:09:11 %KERN-3-SYSTEM_MSG: end_request: I/O error, dev hde,  sector 71 - kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1 14:09:11  %KERN-3-SYSTEM_MSG: Buffer I/O error on device hde1, logical block 1  -
kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1 14:09:11 %KERN-3-SYSTEM_MSG:  end_request: I/O error, dev hde, sector 10485823 -
kernel


2012 Aug  1  14:09:13 NCSP2002 Aug  1 14:09:11 %KERN-3-SYSTEM_MSG: Buffer I/O error on device  hde1, logical block 1310
720 - kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1  14:09:11 %KERN-3-SYSTEM_MSG: end_request: I/O error, dev hde, sector 10485839  -
kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1 14:09:11 %KERN-3-SYSTEM_MSG:  Buffer I/O error on device hde1, logical block 1310
722 - kernel
2012 Aug   1 14:09:13 NCSP2002 Aug  1 14:09:11 %KERN-3-SYSTEM_MSG: end_request: I/O error,  dev hde, sector 10641591 -
kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1  14:09:11 %KERN-3-SYSTEM_MSG: Buffer I/O error on device hde1, logical block  1330
191 - kernel
2012 Aug  1 14:09:13 NCSP2002 Aug  1 14:09:12  %KERN-2-SYSTEM_MSG: ext3_abort called. - kernel
2012 Aug  1 14:09:13 NCSP2002  Aug  1 14:09:12 %KERN-2-SYSTEM_MSG: EXT3-fs error (device hde1):  ext3_journal_start_sb:
Detected aborted journal - kernel
2012 Aug  1  14:09:13 NCSP2002 Aug  1 14:09:12 %KERN-2-SYSTEM_MSG: Remounting filesystem  read-only - kernel
Correct Answer by phiharri about 5 years 2 weeks ago

Greetings Michael,


The messages indicate that there was an unrecoverable error reading from the hde1 device and the filesystem was remouted read-only, a typical action taken by the Linux kernel to prevent further filesystem damage.


hde1 corresponds to the removable 8GB "Log Flash" on your active supervisor module.


You could try using 'unmount logflash:' and 'mount logflash:' to remount it as read-write, but it is likely that this error indicates a fault with the flash which would reoccur in the future. I'd suggest raising a TAC SR to look at whether this part needs replacing - a spare log flash can be ordered as part N7K-CPF-8GB=.


Hope this helps,

/Phil

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Correct Answer
phiharri Thu, 08/02/2012 - 06:07
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Greetings Michael,


The messages indicate that there was an unrecoverable error reading from the hde1 device and the filesystem was remouted read-only, a typical action taken by the Linux kernel to prevent further filesystem damage.


hde1 corresponds to the removable 8GB "Log Flash" on your active supervisor module.


You could try using 'unmount logflash:' and 'mount logflash:' to remount it as read-write, but it is likely that this error indicates a fault with the flash which would reoccur in the future. I'd suggest raising a TAC SR to look at whether this part needs replacing - a spare log flash can be ordered as part N7K-CPF-8GB=.


Hope this helps,

/Phil

Michael van Kleij Thu, 08/02/2012 - 06:21
User Badges:

Hi Phillip,


Today we've opened a call at TAC and they've said exactly the same just an hour ago. Thanks for your reply :-)

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