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3 Replies Latest reply: May 8, 2012 8:11 AM by 877730 RSS

ZFS Vs UFS for root partition?

877730 Newbie
Currently Being Moderated
Hi,

I m using T series sun servers with 6 SAS drives. I am having Hardware RAID controller. Now i want root drive mirroring that is with 2 hard drives and want ZFS pooling for rest of 4 hard drives. Now i m confused between UFS and ZFS for root partition and implementation of Hardware RAID 1 and ZFS mirroring for root drive.

Can anybody guide me
(a) what is best option RAID1 or ZFS for root drive?
(b) is it better choice to use Hardware RAID 1 for root drives with ZFS pooling for rest of 4 drives?

Regards
  • 1. Re: ZFS Vs UFS for root partition?
    926300 Newbie
    Currently Being Moderated
    (a) what is best option RAID1 or ZFS for root drive?
    (b) is it better choice to use Hardware RAID 1 for root drives with ZFS pooling for rest of 4 drives?
    ZFS-mirror is better choice for root.
  • 2. Re: ZFS Vs UFS for root partition?
    gleng Expert
    Currently Being Moderated
    The preferred method is to allow ZFS control the physical disks. I would avoid the hardware RAID.

    The choice of ZFS or UFS for boot/root disks depends on the level of Solaris. If you choose UFS, I recommend using SVM to mirror the disks not the hardware RAID.

    The combination of ZFS boot/root and zones can cause problems with Live Upgrade, if you are planning on using Live Upgrade.

    Many of the T series sever models have a lot of compute power. It is very unusual to find an application that can utilize the compute power using just the internal disks.

    HTH,
    GlenG
  • 3. Re: ZFS Vs UFS for root partition?
    877730 Newbie
    Currently Being Moderated
    Thanx i will definitely go for ZFS.
    but one i couldent get ur last point that is " Many of the T series sever models have a lot of compute power. It is very unusual to find an application that can utilize the compute power using just the internal disks."

    and one thing more when i m trying to write the boot record on zfs root mirror drive by using this command:-

    installboot -F zfs /usr/platform/`uname -i`/lib/fs/zfs/bootblk /dev/rdsk/c0t1d0s0

    then i m getting this message:

    /usr/platform/uname -i/lib/fs/zfs/bootblk: File not found

    any suggestions plz????

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