On Mon, Apr 13, 2009 at 3:27 PM, Miles Nordin wrote:
> > "nl" == Nicholas Lee writes:
>
> nl>1. Is the cache only used for RAID modes and not in JBOD
>nl> mode?
>
> well, there are different LSI cards and firmwares and drivers, but:
>
> The X4150 SAS RAID controllers will use th
Gary,
How full is the pool ?
-- Sanjeev
On Sun, Apr 12, 2009 at 08:39:03AM -0500, Gary Mills wrote:
> We're running a Cyrus IMAP server on a T2000 under Solaris 10 with
> about 1 TB of mailboxes on ZFS filesystems. Recently, when under
> load, we've had incidents where IMAP operations became ve
On Sun, Apr 12, 2009 at 05:01:57PM -0400, Ellis, Mike wrote:
> Is the netapp iscsi-lun forcing a dull sync as a part of zfs's
> 5-second synx/flush type of thing? (Not needed tince the netapp
> guarantees the write once it acks it)
I've asked that of our Netapp guy, but so far I haven't heard from
On Sun, Apr 12, 2009 at 7:24 PM, Miles Nordin wrote:
>
>nl> Supermicro have several LSI controllers. AOC-USASLP-L8i with
>nl> the LSI 1068E
>
> That's what I'm using. It uses the proprietary mpt driver.
>
>nl> and AOC-USASLP-H8iR with the LSI 1078.
>
> I'm not using this.
>
>nl>
On Sun, Apr 12, 2009 at 12:23:03PM -0700, Richard Elling wrote:
> These disks are pretty slow. JBOD? They are not 100% busy, which
> means that either the cached data is providing enough response to the
> apps, or the apps are not capable of producing enough load -- which
> means the bottleneck m
On Sun, Apr 12, 2009 at 10:49:49AM -0700, Richard Elling wrote:
> Gary Mills wrote:
> >We're running a Cyrus IMAP server on a T2000 under Solaris 10 with
> >about 1 TB of mailboxes on ZFS filesystems. Recently, when under
> >load, we've had incidents where IMAP operations became very slow. The
>
Gary Mills wrote:
We're running a Cyrus IMAP server on a T2000 under Solaris 10 with
about 1 TB of mailboxes on ZFS filesystems. Recently, when under
load, we've had incidents where IMAP operations became very slow. The
general symptoms are that the number of imapd, pop3d, and lmtpd
processes i
We're running a Cyrus IMAP server on a T2000 under Solaris 10 with
about 1 TB of mailboxes on ZFS filesystems. Recently, when under
load, we've had incidents where IMAP operations became very slow. The
general symptoms are that the number of imapd, pop3d, and lmtpd
processes increases, the CPU lo
