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Thread: 1U San
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06-07-2011, 12:03 AM #1Newbie
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1U San
Does anyone have some good experience with any 1U sans? Something with 4 sata drives, 2 gig links etc.
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06-07-2011, 11:48 AM #2Web Hosting Master
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No offence, but that's not a SAN, that's a server, a NAS at a push. 4 x SATA drives, even in RAID-10 isn't going to give any sort of acceptable performance for multiple machines accessing it.
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06-07-2011, 11:59 AM #3Web Hosting Master
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I have to agree with KDA here, you need to be looking at a minimum of 8 drives and a proper software layer on top of that.
If you want to build a 4 drive san then you could just use any 4 bay server and an opensource SAN distro but that's not really going to get you far.
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06-07-2011, 12:50 PM #4Web Hosting Guru
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06-07-2011, 01:03 PM #5Web Hosting Guru
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does this 1U server support 2.5" SAS or SSD? Its rare to see a 1U case with (4) 3.5" slots.
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06-07-2011, 01:08 PM #6Web Hosting Master
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06-07-2011, 01:12 PM #7Web Hosting Master
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4 x 3.5" used to be rare a few years ago, these days it's pretty much standard.
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06-07-2011, 01:24 PM #8Web Hosting Master
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Are you looking for something specific?
http://www.pcconnectionexpress.com/1...3tq-700cb.html
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06-07-2011, 01:29 PM #9Web Hosting Master
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1U san: http://www.dell.com/us/business/p/poweredge-c1100/pd
Just use the 10 disk version.'Ripcord'ing is the only way!
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06-07-2011, 01:38 PM #10Web Hosting Master
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I have to disagree on the fiber part.. A lot of people are running iSCSI on existing ethernet infrastructure. Since you can get 10GE nics pretty decently priced these days.
If you can push it to 2U you can get a IBM 3500 series san with fiber/iscsi/infiniband/sas connectors.
http://www-03.ibm.com/systems/storage/disk/ds3500/
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06-08-2011, 01:35 AM #11Web Hosting Master
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06-08-2011, 01:54 AM #12Backup Guru
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Supermicro has plenty of models that take 8, and one that supports 10:
http://www.supermicro.com/products/c...16TQ-R700C.cfmScott Burns, President
BQ Internet Corporation
Remote Rsync and FTP backup solutions
*** http://www.bqbackup.com/ ***
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06-11-2011, 10:42 AM #13Eternal Learner
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What is the cost of a SAN device of 16 TB to 64 TB?
Prashant T.
Don't run after Success. Run after Excellence and Success will soon follow.
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06-12-2011, 02:59 PM #14Web Hosting Master
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How long is a piece of string? SATA/SAS/SSD, 7k2/10k/15k, FC/FCoE/iSCSI (GE/10GE/infinniband Features such as replication, snapshots.
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06-12-2011, 03:30 PM #15Private Citizen
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QNAP works fairly decent for iSCSI SAN, but they are more along the lines of a SMB appliance.
http://www.qnap.com/Products.asp
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06-12-2011, 09:29 PM #16Junior Guru Wannabe
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Thanks for the links to the 1U SAN. I didnt think there were any good 1U SAN's. For the price per GB I think its best to go for 2U with 3.5" disks.
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06-13-2011, 04:48 AM #17Aspiring Evangelist
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You might have good luck with CORAID. Generally speaking, you should avoid deploying iSCSI over ethernet infrastructure and use a layer-2 protocol like AoE. Otherwise the latency is going to be a bit rough and IP protocol adds additional complexity, which is unnecessary if you're just trying to export some block devices.
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06-19-2011, 02:26 PM #18Junior Guru
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Micro-SANs using SSDs and plenty of RAM can be affective for small deployment, as long as you are realistic about the performance.
Try 4 Gen3 SSDs, a good CPU and as much RAM as you can get (16GiB) + and you should easily saturate a couple of GbE's
Another approach that works well is using a ZFS OS (OpenIndiana or FreeBSD) use a SSD as L2ARC & SLOG and 3 spinning pieces of rust (HDDs). Export via iSCSI
However move to 2U well built SAN and infiniiband or 10GbE are easily the bottleneck.Cloud Pixies Ltd. Adding some Pixie magic into the Cloud!
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06-19-2011, 03:40 PM #19Newbie
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I do respect that some might not thing of a qnap as a san and more of a nas, so to be fair,it's more of a smb san. We're not a large hosting company so I don't need a large 20 disk system, I did pick up a qnap 459u-rp with 4 2tb WD Black drives, and the performance is impressive. I'm able to easily saturate a 1gb link, just working on the bonded interfaces. What impressed me even more is that fact that NFS was actually faster than iscsi for vmware.
For anyone looking for a small solution like this, I can tell you this until works well for a very small budget.
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