Re: [zfs-discuss] ZFS space map causing slow performance

2008-06-10 Thread Victor Latushkin
Scott wrote: > Hello, > > I have several ~12TB storage servers using Solaris with ZFS. Two of > them have recently developed performance issues where the majority of > time in an spa_sync() will be spent in the space_map_*() functions. > During this time, "zpool iostat" will show 0 writes to disk

Re: [zfs-discuss] ZFS space map causing slow performance

2008-06-10 Thread Scott
> Scott, > > This looks more like " bug#*6596237 Stop looking and > start ganging > ". > * > What version of Solaris are the production servers > running (S10 or > Opensolaris) ? > > Thanks and regards, > Sanjeev. Hi Sanjeev, Thanks for the reply. T

Re: [zfs-discuss] ZFS space map causing slow performance

2008-06-09 Thread Sanjeev Bagewadi
Scott, This looks more like " bug#*6596237 Stop looking and start ganging ". * What version of Solaris are the production servers running (S10 or Opensolaris) ? Thanks and regards, Sanjeev. Scott wrote: > Hello, > > I have several ~12TB storage server

[zfs-discuss] ZFS space map causing slow performance

2008-06-09 Thread Scott
Hello, I have several ~12TB storage servers using Solaris with ZFS. Two of them have recently developed performance issues where the majority of time in an spa_sync() will be spent in the space_map_*() functions. During this time, "zpool iostat" will show 0 writes to disk, while it does hundr