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https://issues.apache.org/jira/browse/TS-3132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15388299#comment-15388299
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Leif Hedstrom commented on TS-3132:
-----------------------------------
I ran into this as well today, basically exactly the same scenario, disk
replaces, box came up, initialized the new disk properly, but is not using it
at all.
> Can't recover the disk, after disk replacement
> ----------------------------------------------
>
> Key: TS-3132
> URL: https://issues.apache.org/jira/browse/TS-3132
> Project: Traffic Server
> Issue Type: Bug
> Components: Cache
> Affects Versions: 4.2.0, 5.1.0
> Environment: CentOS 6.5 x86_64
> Reporter: seri,Kim
> Assignee: Alan M. Carroll
> Fix For: sometime
>
>
> {quote}
> \[Oct 9 13:55:18.257\] Server \{0x2add2d1d0700\} WARNING: cache disk
> operation failed READ -1 5
> \[Oct 9 13:55:18.259\] Server \{0x2add03736700\} WARNING: Error accessing
> Disk /dev/sdk \[1/5\]
> \[Oct 9 13:55:18.265\] Server \{0x2add2cdcc700\} WARNING: cache disk
> operation failed READ -1 5
> \[Oct 9 13:55:18.271\] Server \{0x2add02120700\} WARNING: Error accessing
> Disk /dev/sdk \[2/5\]
> \[Oct 9 13:55:18.273\] Server \{0x2add2dbda700\} WARNING: cache disk
> operation failed READ -1 5
> \[Oct 9 13:55:18.280\] Server \{0x2add02827700\} WARNING: Error accessing
> Disk /dev/sdk \[3/5\]
> \[Oct 9 13:55:18.325\] Server \{0x2add2c7c6700\} WARNING: cache disk
> operation failed READ -1 5
> \[Oct 9 13:55:18.331\] Server \{0x2add01d1c700\} WARNING: Error accessing
> Disk /dev/sdk \[4/5\]
> \[Oct 9 22:36:49.223\] Server \{0x2add2cbca700\} WARNING: cache disk
> operation failed READ -1 5
> \[Oct 9 22:36:49.226\] Server \{0x2add01b1a700\} WARNING: too many errors
> accessing disk /dev/sdk \[5/5\]: declaring disk bad
> \[Oct 9 22:36:49.405\] Server \{0x2add2c3c2700\} WARNING: cache disk
> operation failed READ -1 5
> {quote}
> Because of disk failure,
> 1. I stopped Traffic Server, replaced the disk and started Traffic Server.
> {quote}
> \[Oct 14 16:53:04.131\] Server \{0x2ada6e423700\} WARNING: disk header
> different for disk /dev/sdk: clearing the disk
> \[Oct 14 16:53:04.225\] Server \{0x2ada67757140\} NOTE: traffic server running
> \[Oct 14 16:53:11.890\] Server \{0x2ada6f231700\} NOTE: cache enabled
> {quote}
> 2. But failed to recover the disk.
> How can I recover the failed disk?
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