Re: Calculating disk space with ZFS

2008-07-15 Thread Dan Nelson
In the last episode (Jul 14), Steve Bertrand said:
 I'm configuring Amanda over ZFS, with plans for a five 'tape'
 diskless cycle.
 
 When I'm calculating the size of each 'tape', should I divide up my
 dedicated backup space based on a 'df -h', or a 'zpool list'?
 
 Assume that if I go by the 'zpool list' command, I'd like to allocate
 1.8TB, divided by five to tapes. Should I use this number, or would
 it be more appropriate to slice up the space based on the 'df -h'
 below?  I'm assuming the latter, but I'd just like to ask for
 clarification.
 
 amanda# zpool list
 NAMESIZEUSED   AVAILCAP  HEALTH ALTROOT
 storage1.82T   2.86G   1.82T 0%  ONLINE -

zfs list will give you a more accurate number, I think.  At least all
the posts matching this search seem to say so:

http://www.google.com/search?q=site:mail.opensolaris.org+zpool+list+zfs+list;
 
 amanda# df -h
 FilesystemSizeUsed   Avail Capacity  Mounted on
 storage   1.3T2.1G1.3T 0%/
 devfs 1.0K1.0K  0B   100%/dev

-- 
Dan Nelson
[EMAIL PROTECTED]
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Calculating disk space with ZFS

2008-07-14 Thread Steve Bertrand

Hi all,

I'm configuring Amanda over ZFS, with plans for a five 'tape' diskless 
cycle.


When I'm calculating the size of each 'tape', should I divide up my 
dedicated backup space based on a 'df -h', or a 'zpool list'?


Assume that if I go by the 'zpool list' command, I'd like to allocate 
1.8TB, divided by five to tapes. Should I use this number, or would it 
be more appropriate to slice up the space based on the 'df -h' below? 
I'm assuming the latter, but I'd just like to ask for clarification.


amanda# zpool list
NAMESIZEUSED   AVAILCAP  HEALTH ALTROOT
storage1.82T   2.86G   1.82T 0%  ONLINE -

amanda# df -h
FilesystemSizeUsed   Avail Capacity  Mounted on
storage   1.3T2.1G1.3T 0%/
devfs 1.0K1.0K  0B   100%/dev

Regards,

Steve
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