Re: Homebuilt server (NAS/SAN) vs the prefab ones? Peformance differences? SAN vs NAS
Web Server forum
Back To The Forum Home!Search!Private Messaging System

Web Server Talk Web Server Talk > WebserverTalk Community > Data Storage > Re: Homebuilt server (NAS/SAN) vs the prefab ones? Peformance differences? SAN vs NAS




  Last Thread   Next Thread Next
  Show Printable Version Email this Page Subscribe to this Thread      Post New Thread    Post A Reply      

    Re: Homebuilt server (NAS/SAN) vs the prefab ones? Peformance differences? SAN vs NAS   
markm75


View Ip Address Report This Message To A Moderator Edit/Delete Message


 
01-25-07 06:15 AM



On Jan 24, 8:24 pm, Bill Todd <billt...@metrocast.net> wrote:
> markm75 wrote: 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> that I already had sitting around the house, I'd budget under $1000 for
> the whole thing (*'way* under unless you want to mirror the backup
> storage rather than use RAID-5) - excluding any costs for the backup and
> system software (I'd probably use Linux and some form of open-source
> backup, but since you apparently already have the Win2K3 server system
> and seem to want BackupExec, that's fine too).
>
> Any relatively current processor should be up to the task (Athlon64s are
> under $100 these days, but even a middle-of-the-road Sempron might do
> the job:  even if you opt to use software RAID-5 the main load should be
> handling the Gigabit Ethernet I/O at link speed, which shouldn't be too
> bad if you can use jumbo frames - though using double GigE ports adds to
> that unless you use add-on NICs that include TCP/IP offload engines,
> which aren't very expensive any more).
>
> The lowest-end quality motherboard (probably microATX so you won't need
> to mess around with video or sound cards) you can find with one (or two)
> on-board Gigabit Ethernet ports (unless you go the TOE NIC route) that
> has enough (4 should do it) SATA connectors to avoid the need for an
> add-on card (IIRC Win2K3 Server includes software RAID support by
> Veritas - more than adequate for a backup server) should do nicely for
> backup-server operation (though a motherboard with just the
> what-used-to-be-normal pair of ATA connectors would do in a pinch, since
> three 400 GB backup disks plus a modest system disk would be enough, and
> if you wanted to mirror instead of using RAID-5 you could make one of
> the 4 drives 500 GB to leave room for the system - or make two of them
> 500 GB and mirror the system).  MB and processor together (including fan
> & heatsink, which given a modest processor can also be modest) should
> total $200 or less - a *lot* less if you find Outpost (Fry's), Newegg,
> or ZipZoomFly offering a combination special (I do like the three-year
> warranties on retail processors, though, and on MBs as well, so I'd hold
> out for those if I were building this and use a well-recognized brand
> like Asus or Gigabyte for the MB).
>
> At $180 (on the WDC.com Web site, which means you could likely get a
> somewhat better deal if you looked around - ah, yes, Newegg has them,
> shipped, for $136) Western Digital's 400 GB Enterprise (5-year warranty,
> 1.2 million hour MTBF @ 100% duty cycle) RE2 drives should be more than
> sufficient for backup-service tasks.  Even the Enterprise Seagate
> Barracuda ES 400 GB drive (which appears to have replaced their NL
> 'Nearline' series and purports to be suitable for more general
> enterprise use) only runs $176 shipped by Newegg, but I'd have to
> consider that overkill for this application.  You could save a bit more
> and get conventional desktop drives ($126 shipped for a 400 GB Seagate
> or WD SATA drive from Newegg), which given that you're going to protect
> them with RAID anyway should be more than adequate for use in a backup
> server (if I went with desktop drives I'd probably opt for the Seagates
> because of their 5-year vs. 3-year warranty - and because I have just a
> smidge more confidence in their durability).  Bottom line is that you'll
> find it difficult to spend much over $600 on the disks, and could get by
> for under $500 using RAID-5.
>
> RAM's kind of expensive at the moment, but you can still get 1 GB for
> under $100 if you shop around (and it's not clear why you'd need even
> half that much for a backup server:  it's not as if you wanted to cache
> data as you would on a file server).
>
> Other pieces don't add up to all that much.  If you'd rather not have to
> take the server case apart to change a disk, you can find ATA
> removable-drive bays (to place in a 5.25" drive bay and hold a 3.5"
> drive), including trays, for as little as $7 (at geeks.com, of course;
> they're plastic but have worked just fine for me, though I wouldn't
> recommend them for constant day-in/day-out disk substitutions).  I
> haven't searched much for SATA removable racks, but IIRC xpcgear has one
> for $20.
>
> With a RAID-5, system-on-the-backup-disks approach, you need only three
> drives to reach 800 GB of net backup storage (one or two being 500 GB
> drives to include room for the - possibly mirrored - system if you don't
> want a small separate system drive that you'd have to remove the case to
> get to), and can get an Ultra mid-tower case with three 5.25" external
> bays free after rebate (with free shipping) for the next couple of weeks
> at outpost.com.  Outpost also has a free-after-rebate (but you'll pay
> under $10 for shipping) Ultra 500W power supply, with plenty of 12v
> current to spin up over a half-dozen drives simultaneously and power the
> motherboard without breaking a sweat:  Ultra, while relatively
> well-known, is not a first-tier name in power supplies, but if you look
> at Newegg's recent customer reviews of Antec units (which used to have a
> great reputation) you begin to wonder how much difference this makes (I
> got one of the Ultra cases and PSUs and am happy with both).  If you
> were impressed by the redundant power supplies in Tiger Direct's server,
> consider that you could instead build *two complete servers* (mirroring
> each other rather than using redundant storage internally) for around
> $1400 using these parts (you'd have to wait for another rebate cycle on
> the case and PSU to get them for free, though).  If you don't like
> dealing with rebates (or want to mirror your backed-up data and thus
> need a case with four external 5.25" bays), just add $40 each for the
> case and, if applicable, PSU.  Of course, you *can* spend close to $200
> for a case plus power supply, just as you *can* spend close to $4K for
> an 800 GB backup server...
>
> That's about it, save for some SATA drive cables.  You said you wanted
> to 'build' a server - here's your chance.
>
> Good luck,
>
> - bill- Hide quoted text -- Show quoted text -

Thanks for all the great info.. your details on the homebuilt system
are great.

Not far off from the preliminary plans I've made.

My price of $3200 was for a rackmount server.. as we dont have the
space for any more towers.. we are getting a 42U rackmount 4 post
cabinet within a week, I already have a 3U rackmount server jerry
rigged in the bottom of the existing 2 post unit.  We have 4 total
servers now (and 1 DC).. the 4 servers would go over ethernet...

Do I need a special kind of nic card to be able to use the jumbo frames
options.. as I dont see this on any of our existing NICs on any of the
servers.  I also have a 48 port gigabit managed switch, I bet it has
these options on it though.

Like I said our full load at full backup time is 800 or so , but my a
month's end before the next one after incrementals we are at 1.1TB.. so
for the backup server I was planning on purchasing Seagate 400GB drives
(I dont think they were enterprise class, I'm still unclear on the real
advantage there?  Though I agree.. I like Seagate better as far as
reliability).. I was going to put 5 of these in RAID5 giving 2 TB of
space  (goal for all of this being to last 3 years at least).  the
seagate I was going with:  SATAII 3  Gbps.

So I had priced the WoodCrest CPU  ($384).. the Ram 2x1gb PC2640 DDR2
667($329).. The 5 400 GB HDs and 2 mirrored 120gb OS drives ($950).
The motherboard Asus DSBV-D $339, finally the 3ware card 3ware
9590SE-8ML $484 and then the SATAII 2U server case at $689 (with mini
sas/ncq) ability.

Maybe the cpu/motherboard is overpriced but I want longevity..

And then ill use the exebyte magnum 224 lto3 (upgradable to lto4) for
offsite backup via u320 scsi...






[ Post a follow-up to this message ]



    Sponsored Links  




 





   All times are GMT. The time now is 02:02 AM.      Post New Thread    Post A Reply      
  Last Thread   Next Thread Next


Most Popular forums 

Forum Jump:
Rate This Thread:

Forum Rules:
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is OFF
vB code is ON
Smilies are ON
[IMG] code is OFF
 
Medical and Health forum | Computer Games Reviews | Graphics design forum

Back To The Top
Home | Usercp | Faq | Register