[geeks] solaris questions
patrick at zill.net
Sat Apr 5 11:08:18 CDT 2008
Shannon Hendrix wrote:
> Some questions about Solaris:
> Is there any benefit to running ZFS on a single drive, or two dissimilar
> My new server has an 80GB primary and a 400GB data drive. Currently
> everything is on the primary except /u, where my data will live.
> Is there a way to have / be UFS to it can boot, but install the rest of
> the system (/usr, /var, etc) on ZFS? I didn't see an option in the
> installer to make that choice.
Supposedly opensolaris will let you boot on ZFS. Not sure of the
> How do you run ZFS on hardware RAID? In the future I am thinking of a
> nice 3Ware RAID card. I like the hardware RAID because it reduces the
> overhead bandwidth and so far I've found the good cards very fast, even
> some cheaper ones.
Assuming that the RAID card presents the RAIDed disks as one larger
disk, you would create a zfs pool on that single drive device. ZFS
would not do RAID but would still do its checksumming.
> Can you turn off ZFS's RAID features and just use it to slice up a RAID
> array and manage it, or will it possibly "compete", and the double-layer
> of RAID cause problems?
Yes, you do not pass the mirror or raidz or raidz2 arguments to zpool
> How can you create a zone without all the packages in the global zone
> being put in it?
There is not a way to avoid the packages being installed. However in my
case, I have been able to have just 37M of disk used in creating a new
zone by having the zone inherit (read-only shared within the zone) /opt
, /sbin/ /usr /bin etc.
> Is there a sane way to handle Blastwave packages and dependencies with
> regard to zones?
Yes, with the caveat that everything installed in the global zone ends
up in each zone.
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