Networker

Re: [Networker] 7.2 upgrades...

2010-03-14 19:33:10
Subject: Re: [Networker] 7.2 upgrades...
From: Yaron Zabary <yaron AT ARISTO.TAU.AC DOT IL>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Mon, 15 Mar 2010 01:30:37 +0200
Anacreo wrote:
Yaron,
  What version of Solaris are you running on the Thumper, update 8 is
significantly faster than say update 3?

The Thumper is U8 with recommended patches from November 2009 (kernel is Generic_141445-09).

  Do you have any SSD's in the
thunper to handle L2ARC?

  No.


  What kind of performance are you getting?

As I said the problem is when staging from an AFTD on the Thumper to an LTO4 drive (with LTO3 media) on the T1000. I can get ~30MBps per clone session. If I run a few of them (there are four drives on the T1000), the total will be ~60MBps. Staging from an AFTD which is local to the T1000 can do ~70MBps. The Thumper and the T1000 are both connected via a 4 port aggregate (dladm create-aggr -d e1000g0 -d e1000g1 -d e1000g2 -d e1000g3 1) to the same Cisco 3560 switch, so, in theory, if I get unlucky and all sessions hit the same interface, the network should limit me to 125MBps.


  Have you tried a few tests like backing up Dev Random?   To see where
you're bottlenecking?

All backups go to the Thumper and with 64 sessions I can get ~100MBps which is OK because all clients are connected via a single 1GigE link of the above mentioned 3560 at the campus. So, there is no performance problem with the Thumper when doing backups. Also, zpool iostat 1 does not show any heavy load on the pool (I cannot send some output because there is a scrub running right now).


  Feel free to make more suggestions.



Alec

On 3/14/10, Yaron Zabary <yaron AT aristo.tau.ac DOT il> wrote:
tkimball wrote:
We went from 7.1.3 + AlphaStor to 7.4.4 and no AlphaStor *cheer*.  The
version choice was made over a year ago, based on Stan's experience with
it on Sun hardware.

I've been overall pleased with the new version, in particular how much
easier library management is (compared to AlphaStor anyway).  I'm still
poking and prodding at the GUI to see how far I can take it, and how to
document procedures for our Ops group.

Right now my only gripe is that 7.6 came out at the wrong time (final eval
 before rollout) otherwise my NMC server would have been that instead of
7.4.4.  Now I'm waiting until at least June before getting back something
similar to the old nwadmin.

Most of our troubles come from old Windows boxes, even before the upgrade
(W2K Server and AdvServer), though we've now had one incident where the
Adv_file devices started unmounting but would not re-mount (said it was
not in media db!).  Bouncing the software fixed that, it had been running
for almost a month.

Yaron, can you give details regarding what your DBO issues are?  I've not
seen any throughput issues (actually that's been better, now that the
Server itself also went from E450 to T2000).  However, our disk array is 1
Gig FC so may not be able to help.
   Our setup is AFTD which is located on a Sun X4500 (Thumper) and the
tape library is connected to a T1000. Staging from the x4500 to the
T1000 is performing poorly compared to the old setup (a Clariion AX150
which was directly connected to the T1000). I suspected that this was
related to LGTsc30475 (aka 30475nw "Cloning is slow from the local to
remote device"). I was hoping that this will be solved by 7.5.2, but
after upgrading this morning, things are quite the same.

   The issues we had (on previous versions) were:

   . "duplicate name; pick new name or delete old one"  (on 7.2.2)
upgraded to 7.3.4

   . Owner notification bug (on 7.4.3).

   . LGTsc24106 (on 7.4.4). (volretent) Patched a few binaries.

   . Some nsrck bug (on 7.4.5) (nsrck hang on unknown clients unrelated
to AFTD). Patched some binaries.

   . "Failed to fetch the saveset(ss_t) structure for ssid" (on 7.5.1).
Moved to 7.5.1.7.

--TSK



evilensky AT gmail DOT com wrote:
Hi,

So what's the latest word on upgrades from 7.2?  Is 7.6 a viable
option or is 7.4/7.5 more "fully cooked"?  We're not really looking
for features so much as support for the latest client platforms and
stability.  We're not going to be spending much money on upgraded
hardware either, so an in-place upgrade is the most likely.  Thanks in
advance for any opinions/observations.


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-- Yaron.

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-- Yaron.

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