- Community Home
- >
- Storage
- >
- Entry Storage Systems
- >
- MSA Storage
- >
- Re: MSA1000 Disk performance
Categories
Company
Local Language
Forums
Discussions
Forums
- Data Protection and Retention
- Entry Storage Systems
- Legacy
- Midrange and Enterprise Storage
- Storage Networking
- HPE Nimble Storage
Discussions
Discussions
Discussions
Forums
Forums
Discussions
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
- BladeSystem Infrastructure and Application Solutions
- Appliance Servers
- Alpha Servers
- BackOffice Products
- Internet Products
- HPE 9000 and HPE e3000 Servers
- Networking
- Netservers
- Secure OS Software for Linux
- Server Management (Insight Manager 7)
- Windows Server 2003
- Operating System - Tru64 Unix
- ProLiant Deployment and Provisioning
- Linux-Based Community / Regional
- Microsoft System Center Integration
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Discussion Boards
Community
Resources
Forums
Blogs
- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО05-28-2007 04:38 AM
тАО05-28-2007 04:38 AM
MSA1000 Disk performance
Thanks;
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО05-28-2007 01:41 PM
тАО05-28-2007 01:41 PM
Re: MSA1000 Disk performance
Although the MSA1000 performance utiliy is not flash in any way, you could try this to get a realtime view of the disk subsystem performance:
1. from the msa1000 cli, type "start perf"
2. from the msa1000 cli, type "show perf"
3. after you r done with the monitoring, you can stop perf capture by typing "stop perf".
Hope this helps.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-08-2007 01:07 AM
тАО06-08-2007 01:07 AM
Re: MSA1000 Disk performance
If you are running Win2003 make sure write caching is enabled in windows. To do this go to the properties of the disk in windows that is on the SAN LUN. On the next window click the hardware tab. this should show a listing of all hard disk drives. One of them should be listed as something like MSA 1000 Volume multi path disk device. Select it and click the properties button. On the next screen go to the Policies tab and ensure that the following are selected: Optimize for Performance, Enable Write Cache on Disk, Enable Advance Performance.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-08-2007 01:11 AM
тАО06-08-2007 01:11 AM
Re: MSA1000 Disk performance
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-14-2007 05:33 AM
тАО06-14-2007 05:33 AM
Re: MSA1000 Disk performance
I upgraded the following:
MSA1000 controller from ver 4.42 to 5.20
QL2300.HAM QLogic QL2300 HAM Driver from 6.80.08 to QL2X00.HAM Version 6.90.13 (m)
A slight improvement in performance, But not good enough. Since the upgrade I can no longer see the MSA1000 under Mass Storage in Insight manager (just port 2301 on a server running the insight manger agents on the SAN). I use to be able to see this. The reason I bring this up is I have acquired another 256 Mb cache for the MSA Controller and I wanted to verify I am currently running at 256 and have capacity for the second cache module.
Also show perf logical from the CLI shows the SAN environment is more read intensive then write (see attched). I have the read/write at 50/50. I want to change this to read/write at 70/30 respectfully. I see in the docs how to do this but can this done dynamically without a system outage and if so does the SAN take a performance hit while the disk is reconfigured
As always thanks very much for the assistance
Blair
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-14-2007 05:54 AM
тАО06-14-2007 05:54 AM
Re: MSA1000 Disk performance
You sure have some latency on those drives. Can you provide a >show tech_support from the cli.
You can see if you are utilizing the cache on the MSA.
>show cacheinfo
This is a snapshot. Cycle through it a few times.
jk
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-15-2007 06:49 AM
тАО06-15-2007 06:49 AM
Re: MSA1000 Disk performance
Thanks for the assistance
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-15-2007 07:13 AM
тАО06-15-2007 07:13 AM
Re: MSA1000 Disk performance
Batteries are disabled and
Module #1 is fully charged and turned off.
mean
doesn't sound good But not sure
Thanks
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-15-2007 09:24 AM
тАО06-15-2007 09:24 AM
Re: MSA1000 Disk performance
Which is your mail server?
From that one cacheinfo the MSA isn't busy.
Issue a >start perf and let it run for a while. This will allow all the numbers to settle. Then provide >show perf logical
If your latencies are above 25ms. You should consider one or all of the following.
1). Add more spindles. It doesn't look like a viable option.
2). Increase your stripe size to 64K.
3). You may have to move your LUNs around.
One item you need to consider, the more LUNs you carve out of a disk array, the more the access pattern to those LUNs appears random. It takes time to seek those heads between the different LUNs.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО06-18-2007 03:42 AM
тАО06-18-2007 03:42 AM
Re: MSA1000 Disk performance
The problem environment (the one taking the biggest hit AveRd Lat is 180ms to 280ms)
Parallel SCSI Array C with Spare
A four node cluster (file server FS1810, FS1811, FS1812, FS1813) with each server runs a post office on each LUN)
Disks are the following
LUN 15 (ACU view 16) - just 20 Mb for operational Cluster space at the OS level
LUN 16 (ACU view 17)
LUN 17 (ACU view 18)
LUN 18 (ACU view 19)
LUN 19 (ACU view 20)
2). Increase your stripe size to 64K.
So if migrating a post office (LUN 19) out of this environment (to a standalone separate server NOT running on SAN disks). Using that space to expand the array , Recreate LUN from 120 Gb to 100 Gb. Then increase stripping to 64 and downgrading to RAID 5 (instead of 6- ADG).
a) Would I have the ├в net├в disk space to accommodate the new striping from 16K to 64k (20 Gb plus moving from raid 6 to raid 5).
b) It looks like the rebuild would be 25hrs/ 100 Gb. I realize we would take a performance hit but would the mail system still function ?
3). You may have to move your LUNs around.
Not sure what you mean as there is a basically 4 LUNS mounted one / server and only these 4 servers can see the 4 LUNS (SSP) in the array. If I were to move the LUNS what would I base the move on ?
Finally my biggest hits are read So would moving from 50/50 to 70/30 help at all ?
Thanks again for this help
Blair