- Community Home
- >
- Storage
- >
- Entry Storage Systems
- >
- Disk Enclosures
- >
- Re: MSA 20 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
тАО08-25-2005 01:58 AM
тАО08-25-2005 01:58 AM
MSA 20 Performance
Here is the config I am looking at.
MSA 20 Start Kit with 12 drives direct SCSI attached to a new DL380 using Smart Array 6402/128 Controller Card - Windows 2003 - Backup software is Backup Exec v10.
This would be a dedicated backup server to backup 7 Windows Database Servers. Current amount of data is 400GB and not expected to grow beyond 800GB in next 3 years.
Specific questions:
What speed can I expect over current 100Mb LAN to disk and how many streams (jobs) can I run at once.
If network is upgraded to Gigabit what speed and how many streams (jobs) can I expect to run at once.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-26-2005 01:47 AM
тАО08-26-2005 01:47 AM
Re: MSA 20 Performance
I have a MSA20 Starter Kit and it is configured with 12x 250MB disks and in RAID ADG.
It has also been setup as backup server. We almost went for the Backup Exec v10, but as a small company we felt EMC-Dantz MultiServer v7 (with value add-on pack) was much more cost effective.
Over the network, we get about 239.7MB/min for writing data. However, locally it can do about 388.1MB/min.
So not very fast at all, but much cheaper than the cost of MSA30. It could have been faster if we choose RAID10.
Gus
ps: if this is helpful, please assign point.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-26-2005 02:07 AM
тАО08-26-2005 02:07 AM
Re: MSA 20 Performance
Over the network, at night, I'd expect 10MB/sec over 100Mb switched ethernet. I haven't personally sat and watched transfer speeds over Gb networks, but I'd hope for at least 50MB/sec (when I last really showed an interest in them they were fairly new out, and were lucky to hit 400Mb/sec. Quad Fast Ethernet cards were a better option at that time in a cost-per-port comparison). If disks are RAID 5, there's little chance of them writing at 50MB/sec though. Raid 0+1 is better, but halves your disk capacity straight off.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-26-2005 07:08 AM
тАО08-26-2005 07:08 AM
Re: MSA 20 Performance
Is this overall speed or per stream (Job) - assuming you are using multiple streams.
If this is overall speed then I'd be very disappointed in performance. It would take about 30 hrs to do a full backup. Sixty hours if data doubles in next 3 years.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-26-2005 07:22 AM
тАО08-26-2005 07:22 AM
Re: MSA 20 Performance
I understand your math here and I was hoping to hear I could get 4 or 5 streams at (10MB/Sec - 600MB/min)over GigE.
Anyone else have a different experience.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-28-2005 08:25 PM
тАО08-28-2005 08:25 PM
Re: MSA 20 Performance
If you have 400GB+ data to backup, then yes it would take a very long time. However, bear in mind that if you use Symantec-Veritas Backup Exec 10, you would use "Synthetic" Backup most of the time and it would be unlikely for you to backup 400GB data daily. You would probably use FULL backup once a month.
However, MSA20 is faster than some other brands' USB2 enclosures (so I have been told, but it would make sense).
It is a pity that HP did not introduce 10k drives for the MSA20. If they did, the product will be faster and may even become popular for Entry-level Storage market!
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-29-2005 07:34 AM
тАО08-29-2005 07:34 AM
Re: MSA 20 Performance
Lets look at the math,
Theoritical
10Mb/s = 4.4GB/hr, 400GB database would take ~90 hrs backup.
100Mb/s = 45GB/hr, 400GB database ~9 hrs
GigE - 450GB/hr,
I believe BE uses 128k block transfers. Knowing the transfers and using a RAID5 spindles, you should expect ~45MB/s (this number is from behind a 1500 shelf). I wouldn't expect to much difference from SA6402. Using 45MB/s would get you ~160GB/hr.
What kind of backup window do you have?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-29-2005 09:07 AM
тАО08-29-2005 09:07 AM
Re: MSA 20 Performance
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
тАО08-30-2005 05:23 AM
тАО08-30-2005 05:23 AM
Re: MSA 20 Performance
Again, this is 1500/20.
Even if you have multiple threads you will have to open the network pipe.