Date: Tue, 20 Jul 2010 09:19:46 -0300 From: Marco Haddad <freebsd-lists@ideo.com.br> To: freebsd-geom@freebsd.org Subject: Re: gvinum performance issues Message-ID: <AANLkTimXZFTHYP82sFUkls9ovkDWMPoWWZ1M-48UsEoX@mail.gmail.com> In-Reply-To: <AANLkTinzu-78p0yQvWKMdtU0xJ7XZM_B-liwGW_vGEIG@mail.gmail.com> References: <AANLkTinzu-78p0yQvWKMdtU0xJ7XZM_B-liwGW_vGEIG@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi, everybody! Could at least someone please confirm that I'm not alone here? Thanks! Marco Haddad On Sun, Jul 18, 2010 at 6:41 PM, Marco Haddad <freebsd-lists@ideo.com.br>wrote: > Hello, > > I've seen somewhere a thread about this topic, but I can't find it here, > where I think it ought to be. > So, let me describe what is going on: I had this Core2 Quad running as > Internet gateway, web server and file server, doing fine with FreeBSD 7.2 > for a long time. The problem came with the upgrade to version 8.0. > > It is composed of two gmirror volumes, each build up from a pair of 500GB > disks. They are not the problem. Because of the nature of this server role, > a long history of backups is necessary, and for that task there was a single > 1.5TB disk, which got filled up after some time. > > Then I decided to get two more 1.5TB disks and use gvinum to build a raid5 > volume for the backup. That was done with success. The backup operation that > used to take four hours to complete, now was taking 6 hours, what was ok for > an over night backup. > > Then I decided to upgrade to version 8.0, so I could grow the volume just > adding more disks, without losing its content. The upgrade went well with no > problems at all, but the backup was already running for three days when I > realized that something was wrong. The transfer rate was around 200KB/s, a > fraction of what it was with version 7.2. > > After trying all possible solutions found, including rebuilding parity, > destroying the volume and recreating under version 8.0, I decided the just > concat the three disks and let the backup roll, while I seek for help. > > I read somewhere Ulf telling that he had received a number of similar > complaints, but there was no solution on that thread yet. > > So if someone here had this problem solved, please enlighten me. > > Thanks in advance, > Marco Haddad >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?AANLkTimXZFTHYP82sFUkls9ovkDWMPoWWZ1M-48UsEoX>