@opensolaris.org
Subject: Re: [zfs-discuss] STK 2540 and Ignore Cache Sync (ICS)
On Tue, 13 Oct 2009, Nils Goroll wrote:
I am trying to find out some definite answers on what needs to be done on
an
STK 2540 to set the Ingnore Cache Sync Option. The best I could find is
Bob's
Sun StorageTek 2540 / ZFS
...@opensolaris.org
[mailto:zfs-discuss-boun...@opensolaris.org] On Behalf Of Bob Friesenhahn
Sent: Tuesday, October 13, 2009 10:59 PM
To: Nils Goroll
Cc: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] STK 2540 and Ignore Cache Sync (ICS)
On Tue, 13 Oct 2009, Nils Goroll wrote:
Regarding my bonus
...@opensolaris.org] On Behalf Of Bob Friesenhahn
Sent: Tuesday, October 13, 2009 10:59 PM
To: Nils Goroll
Cc: zfs-discuss@opensolaris.org
Subject: Re: [zfs-discuss] STK 2540 and Ignore Cache Sync (ICS)
On Tue, 13 Oct 2009, Nils Goroll wrote:
Regarding my bonus question: I haven't found yet
Hi Bob,
Regarding my bonus question: I haven't found yet a definite answer if
there is a way to read the currently active controller setting. I
still assume that the nvsram settings which can be read with
service -d arrayname -c read -q nvsram region=0xf2 host=0x00
do not necessarily
Hi,
I am trying to find out some definite answers on what needs to be done on an STK
2540 to set the Ingnore Cache Sync Option. The best I could find is Bob's Sun
StorageTek 2540 / ZFS Performance Summary (Dated Feb 28, 2008, thank you, Bob),
in which he quotes a posting of Joel Miller:
To
On Tue, 13 Oct 2009, Nils Goroll wrote:
I am trying to find out some definite answers on what needs to be done on an
STK 2540 to set the Ingnore Cache Sync Option. The best I could find is Bob's
Sun StorageTek 2540 / ZFS Performance Summary (Dated Feb 28, 2008, thank
you, Bob), in which he
Hi Bob and all,
I should update this paper since the performance is now radically
different and the StorageTek 2540 CAM configurables have changed.
That would be great, I think you'd do the community (and Sun, probably) a big
favor.
Is this information still current for F/W 07.35.44.10 ?
Hi Bob and all,
So this sounds like we need to wait for someone to come with a definite
answer.
I've received some helpful information on this:
Byte 17 is for Ignore Force Unit Access.
Byte 18 is for Ignore Disable Write Cache.
Byte 21 is for Ignore Cache Sync.
Change ALL settings to 1
On Tue, 13 Oct 2009, Nils Goroll wrote:
Regarding my bonus question: I haven't found yet a definite answer if there
is a way to read the currently active controller setting. I still assume that
the nvsram settings which can be read with
service -d arrayname -c read -q nvsram
