Re: [adsm] TSM and XIV

2010-10-01 Thread Remco Post
On Fri, Oct 1, 2010 at 4:20 PM, Orville Lantto wrote: > We have full XIV and use 10 TB of it for TSM storage pools. The rest of > the XIV is allocated to an SVC for general host use and is fairly busy. The > default max block size of the hdisk and fibre card is sufficient as is the > default qu

Re: [adsm] TSM and XIV

2010-10-01 Thread Orville Lantto
the hdisk is 1 which is limiting. I have mine set to 40. This can only be done is you are at a recent enough AIX level and XIV drivers. Orville Lantto -Original Message- From: Remco Post To: ADSM-L@VM.MARIST.EDU Sent: Fri, Oct 1, 2010 9:01 am Subject: Re: [ADSM-L] [adsm] TSM

Re: [adsm] TSM and XIV

2010-10-01 Thread Remco Post
On Thu, Sep 30, 2010 at 10:58 PM, Orville Lantto wrote: > Could be that you are hitting the SATA IOPS limit. Cache does not help > much for long streaming IOs like TSM storage pools. Since SATA has only the > capacity for about 60 IOPS per drive, and the XIV has 180 drives. This is > only a ma

Re: [adsm] TSM and XIV

2010-09-30 Thread Orville Lantto
80 MB/sec, about 680 IOPS, and with 5 ms latency. This on a near full XIV with only 10% dedicated to TSM. Orville Lantto -Original Message- From: Richard Rhodes To: ADSM-L@VM.MARIST.EDU Sent: Thu, Sep 30, 2010 11:22 am Subject: Re: [ADSM-L] [adsm] TSM and XIV Not just 100% but

Re: [adsm] TSM and XIV

2010-09-30 Thread Grigori Solonovitch
I am using TSM 5.5.4.1. From: ADSM: Dist Stor Manager [ads...@vm.marist.edu] On Behalf Of Remco Post [remco.p...@gmail.com] Sent: Thursday, September 30, 2010 6:31 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] [adsm] TSM and XIV On Thu, Sep 30, 2010

Re: [adsm] TSM and XIV

2010-09-30 Thread Richard Rhodes
nager" cc Subject Re: [adsm] TSM and XIV 09/30/2010 11:24 AM Please respond to "

Re: [adsm] TSM and XIV

2010-09-30 Thread Mehdi Salehi
Are the tuning parameters like queue_depth the same? Maybe the two disk configurations are physically identical, but AIX treats them differently. Mehdi

Re: [adsm] TSM and XIV

2010-09-30 Thread Remco Post
On Thu, Sep 30, 2010 at 12:37 PM, Grigori Solonovitch < grigori.solonovi...@ahliunited.com> wrote: > I do not have XIV, but I am using DS8100 with FATA disks 1TB 7200 RPM. > I am using AIX multipath access (4 paths) via 2-ports adapter and SAN > switches(4Gb/s each port). I have defined primary an

Re: [adsm] TSM and XIV

2010-09-30 Thread Remco Post
Hmmm, In that case, wouldn't the disks show 100% busy in nmon? AIX doesn't know about the XIV back-end processing. And, we also see these pauses on other TSM servers that are connected to an SVC. No, I really think that something in TSM is slowing us down... -- Gr., Remco On 30 sep. 2010, a

Re: [adsm] TSM and XIV

2010-09-30 Thread Grigori Solonovitch
ent before printing this Email -Original Message- From: ADSM: Dist Stor Manager [mailto:ads...@vm.marist.edu] On Behalf Of Lloyd Dieter Sent: Thursday, September 30, 2010 12:20 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] [adsm] TSM and XIV I'm betting the pauses are the X

Re: [adsm] TSM and XIV

2010-09-30 Thread Lloyd Dieter
I'm betting the pauses are the XIV destaging data from cache to physical disk. Not a big fan of using heavily cached disk LUNs for disk/file storage pools On Wed, 29 Sep 2010 13:47:47 +0200 Remco Post wrote: > Hi all, > > I'm currently testing TSM 5.5.4 on AIX 5.3 with an IBM XIV box. >