Having looked through the forum I gather that you cannot just add an additional device to to raidz pool. This being the case is what are the alternatives that I could to expand a raidz pool? Thanks Ian -- This message posted from opensolaris.org
On 04/19/10 08:42 PM, Ian Garbutt wrote:> Having looked through the forum I gather that you cannot just add an additional device to to raidz pool. This being the case is what are the alternatives that I could to expand a raidz pool? > >Either replace *all* the drives with bigger ones, or add another vdev to the pool. -- Ian.
Thats not easy for me, I have all the storage spilt up into the same size LUNS so I can''t allocate larger luns and the vdev (looking at previous posts) won''t give the raid protection. -- This message posted from opensolaris.org
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On Mon, Apr 19, 2010 at 1:42 AM, Ian Garbutt <ian.g.garbutt at newcastle.gov.uk> wrote:> Having looked through the forum I gather that you cannot just add an > additional device to to raidz pool. This being the case is what are the > alternatives that I could to expand a raidz pool? > > You can''t expand the number of disks in a raidz vdev (go from 4-disk raidz1to a 5-disk raidz1, for example). However, you can replace each of the disks in a raidz vdev with larger disks, thus expanding the total amount of storage available. We''ve done this on two of our storage servers, replacing 500 GB WD disks with 1.5 TB Seagate disks. You can also add another raidz vdev to the pool, thus increasing the total amount of storage available in the pool (zpool add poolname raidz disk1 disk2 disk3 disk4, for example). -- Freddie Cash fjwcash at gmail.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20100419/0b61cf7a/attachment.html>
> <div id="jive-html-wrapper-div"> > <div class="gmail_quote">On Mon, Apr 19, 2010 at 1:42 > AM, Ian Garbutt <span dir="ltr"><<a > href="mailto:ian.g.garbutt at newcastle.gov.uk">ian.g.gar > butt at newcastle.gov.uk</a>></span> > wrote:<br><blockquote class="gmail_quote" > style="margin:0 0 0 .8ex;border-left:1px #ccc > solid;padding-left:1ex;"> > Having looked through the forum I gather that you > cannot just add an additional device to to raidz > pool. This being the case is what are the > alternatives that I could to expand a raidz > pool?<br><br></blockquote><div>You can't expand > the number of disks in a raidz vdev (go from 4-disk > raidz1 to a 5-disk raidz1, for example).</div> > <div><br></div><div>However, you can replace each of > the disks in a raidz vdev with larger disks, thus > expanding the total amount of storage available. > We've done this on two of our storage servers, > replacing 500 GB WD disks with 1.5 TB Seagate > disks.</div> > <div><br></div><div>You can also add another raidz > vdev to the pool, thus increasing the total amount of > storage available in the pool (zpool add poolname > raidz disk1 disk2 disk3 disk4, for > example). </div></div><br>-- <br> > Freddie Cash<br><a > href="mailto:fjwcash at gmail.com">fjwcash at gmail.com</a>< > br> > > </div>_______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discu > ssIts a shame that its not that easy, hopefully something for the future. For my purpose I am going to have to create a new zpool with some new disks in and clone a zone to increase its size. I can''t just add another raidz set of disks as we are quite strict on how much storage I call allocate (gets charged back). Thanks for the replies. Ian -- This message posted from opensolaris.org