[zfs-discuss] Possible ZFS problem

andy thomas
Sat, 13 Aug 2011 14:42:37 -0000

On Sat, 13 Aug 2011, Bob Friesenhahn wrote:

> On Sat, 13 Aug 2011, andy thomas wrote:
>> However, one of our users recently put a 35 Gb tar.gz file on this
server
>> and uncompressed it to a 215 Gb tar file. But when he tried to untar
it,
>> after about 43 Gb had been extracted we noticed the disk usage reported
by
>> df for that ZFS pool wasn''t changing much. Using du -sm on the
extracted
>> archive directory showed that the size would increase over a period of
30
>> seconds or so and then suddenly drop back about 50 Mb and start
increasing
>> again. In other words it seems to be going into some sort of a loop and
all
>> we could do was to kill tar and try again when exactly the same thing
>> happened after 43 Gb had been extracted.
>
> What ''tar'' program were you using?  Make sure to also try
using the
> Solaris-provided tar rather than something like GNU tar.

I was using GNU tar actually as the original archive was created on a
Linux machine. I will try it again using Solaris tar.

> 1GB of memory is not very much for Solaris to use.  A minimum of 2GB is
> recommended for zfs.

We are going to upgrade the system to 4 Gb as soon as possible.

Thanks for the quick response,

Andy