Unfortunately we have very slow performance on the zpool (and very bad backup performance as well) so I was wondering if anyone had any thoughts about zpool/zfs performance on a concatenated volume.. Ive read the usual performance guides but a couple of forums said the performance could be worse with a concat volume especially on an intensive Production read/write volume.
I don't understand what you mean by a concatenated volume. Are you referring to some underlying hardware RAID config?
I see a non-redudant ZFS storage pool of 2 LUNs so data is striped across each LUN.
There are several ways to improve the performance of an Oracle database:
1. Hardware RAID or a mirrored ZFS storage pool is recommended.
2. Which Solaris 10 release is this? The latest Solaris 10 release is recommended.
3. How many db file systems and how are they configured. A separate (small) pool for the redo log is also recommended.
Yes, as far as my understanding there is no concat / stripe in zpool, it takes all as a single disk once bring it under zpool control. check out the IO operations and if possible, try to install Oracle in a local disk and see a performance...to decide if there is a problem in LUN.