Veritas-bu

Re: [Veritas-bu] Anyone here use disk-to-disk-to-tape?

2008-10-24 14:55:27
Subject: Re: [Veritas-bu] Anyone here use disk-to-disk-to-tape?
From: Steve Quan <sq01 AT yorku DOT ca>
To: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
Date: Fri, 24 Oct 2008 14:26:05 -0400 (EDT)
Hi,

I see this as well. I believe that's normal behaviour as the check for the 
high water mark is done before it starts writing the image.

/Steve
--
On Fri, 24 Oct 2008, Justin Piszcz wrote:

> Say you have 4 clients, each have 10TiB of data on them.
> For disk staging you only have 1TiB on each client.
>
> When it gets to 98% of the total capacity of the staging area (default)--
> shouldn't it pause, bleed to tape, delete the files on disk and then
> continue?
>
> Instead, it keeps backing up the files to disk until the disk runs out of
> capacity, has anyone encountered this?
>
> /dev/cciss/c0d0p2      55G   51G  627M  99% /local
> /dev/cciss/c0d0p2      55G   51G  503M 100% /local
> /dev/cciss/c0d0p2      55G   51G  311M 100% /local
> /dev/cciss/c0d0p2      55G   52G  154M 100% /local
> /dev/cciss/c0d0p2      55G   52G  7.1M 100% /local
> /dev/cciss/c0d0p2      55G   52G     0 100% /local
>
> And then..
>
> 10/24/2008 04:15:26 - Critical bpdm (pid=32317) bp_sts_write_image failed: 
> error 31
> 10/24/2008 04:15:26 - Warning bpdm (pid=32317) storage unit my_stage01 is 
> full: processing disk full condition
> 10/24/2008 04:15:41 - Critical bpdm (pid=32317) bp_sts_write_image failed: 
> error 31
> 10/24/2008 04:15:41 - Error bpdm (pid=32317) cannot write image to disk, 
> attempted write of 262144 bytes, system wrote 0
> 10/24/2008 04:15:42 - Error bpbrm (pid=32310) from client client-name: ERR - 
> Cannot write to STDOUT. Errno = 104: Connection reset by peer
>
> About 10-15 seconds later..
>
> /dev/cciss/c0d0p2      55G   55G     0 100% /local
> /dev/cciss/c0d0p2      55G   55G     0 100% /local
> /dev/cciss/c0d0p2      55G   51G  593M  99% /local
> /dev/cciss/c0d0p2      55G   29G   24G  55% /local
> /dev/cciss/c0d0p2      55G   23G   29G  45% /local
> /dev/cciss/c0d0p2      55G   19G   33G  37% /local
> /dev/cciss/c0d0p2      55G   18G   35G  34% /local
> /dev/cciss/c0d0p2      55G   18G   35G  34% /local
> /dev/cciss/c0d0p2      55G   18G   35G  34% /local
> /dev/cciss/c0d0p2      55G   18G   35G  34% /local
>
> It starts deleting the files even though it has not yet written anything
> to tape?
>
> With other backup SW-- it sticks to the settings you have it set
> to, e.g., 70% and then backup to tape, pause backup until it pushes
> all of the data off disk.  With NetBackup that is not the case, any
> ideas?
>
> Justin.
>
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