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Home » Archive » LxAdmin » CentOS 5 Upgrade » Upgrade to centos 5.3 and see a lot of [blkback.nn.sda1]
Upgrade to centos 5.3 and see a lot of [blkback.nn.sda1] [message #61786] Fri, 10 April 2009 06:37 Go to next message
markhard is currently offline markhard  Netherlands
Messages: 288
Registered: May 2007
Location: Netherlands
Senior Member
i was upgrading to centos 5.3 on my hypervm slave and start seeing this on 'ps aux':

root     15666  0.0  0.0      0     0 ?        S<   02:39   0:00 [blkback.17.sda1]
root     15667  0.0  0.0      0     0 ?        S<   02:39   0:00 [blkback.17.sda2]
root     16270  0.0  0.0      0     0 ?        S<   02:46   0:00 [blkback.18.sda1]
root     16271  0.0  0.0      0     0 ?        S<   02:46   0:00 [blkback.18.sda2]
root     16889  0.0  0.0      0     0 ?        S<   02:53   0:00 [blkback.19.sda1]
root     16890  0.0  0.0      0     0 ?        S<   02:53   0:00 [blkback.19.sda2]
root     17480  0.0  0.0      0     0 ?        S<   02:56   0:00 [blkback.20.sda1]
root     17481  0.0  0.0      0     0 ?        S<   02:56   0:00 [blkback.20.sda2]


tried to search on google but can't get any useful information, what is blkback? should i worry about HDD problem?

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Re: Upgrade to centos 5.3 and see a lot of [blkback.nn.sda1] [message #61796 is a reply to message #61786] Fri, 10 April 2009 12:01 Go to previous messageGo to next message
Lxhelp
Messages: 23691
Registered: July 2006
The Champion
They are kernel level processes waiting on the harddisk. Search for blkback in google.


On Fri, Apr 10, 2009 at 10:37:19AM -0000, MarkHard wrote:
>
>
> i was upgrading to centos 5.3 on my hypervm slave and start seeing this on 'ps aux':
>
> root 15666 0.0 0.0 0 0 ? S< 02:39 0:00 [blkback.17.sda1]
> root 15667 0.0 0.0 0 0 ? S< 02:39 0:00 [blkback.17.sda2]
> root 16270 0.0 0.0 0 0 ? S< 02:46 0:00 [blkback.18.sda1]
> root 16271 0.0 0.0 0 0 ? S< 02:46 0:00 [blkback.18.sda2]
> root 16889 0.0 0.0 0 0 ? S< 02:53 0:00 [blkback.19.sda1]
> root 16890 0.0 0.0 0 0 ? S< 02:53 0:00 [blkback.19.sda2]
> root 17480 0.0 0.0 0 0 ? S< 02:56 0:00 [blkback.20.sda1]
> root 17481 0.0 0.0 0 0 ? S< 02:56 0:00 [blkback.20.sda2]
>
> tried to search on google but can't get any useful information, what is blkback? should i worry about HDD problem?
> --


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Re: Upgrade to centos 5.3 and see a lot of [blkback.nn.sda1] [message #61801 is a reply to message #61796] Fri, 10 April 2009 12:11 Go to previous messageGo to next message
markhard is currently offline markhard  Netherlands
Messages: 288
Registered: May 2007
Location: Netherlands
Senior Member
i did search on google, but what i found are patches and no explanation about what it is.

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Re: Upgrade to centos 5.3 and see a lot of [blkback.nn.sda1] [message #61869 is a reply to message #61786] Fri, 10 April 2009 15:39 Go to previous message
arthurthornton is currently offline arthurthornton  United States
Messages: 2120
Registered: August 2007
Location: Virginia
Grandmaster
LxCenter Staff
It appears this is a Xen issue.

Post this in the Xen forum in the HYPERVM category. You posted this in the LxAdmin category, an entirely different product from HyperVM.

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