Power supply for 16 devices ? How big ?

[jose]

Hi everyone , how big of a ps would I need for a raid 5 systems to hold
12 - 250 sata hd's
2 - 36g raptors
1 - 3500a dvd writer & floppy ?

I'm thinking of putting this in a CoolerMaster Stacker case which can hold 2 power supplies. So maybe 2 - Antec TruePower 430's would do. I'm thinking I might need a bigger case, so can anyone recomend one ?

If I had to a diff. case that supported only one power supply then what size to get ?

Enermax 600w or 660w , Antec 550w ??

Thanks for your help.

Regards,
Jose

 

[iwantanewcomputer]

i don't have an answer to your question but holy crap!

 

[mrSHEiK124]

i'm not an expert, but the enernmax 600 should be enough, i think

 

[ViRGE]

The rule of thumb is that you need 25wts per mechanical device, so 15x25 only comes out to 375wts for the drives. If you figure you throw in another 200wts for everything else, I wouldn't go below 600wts.

 

[TwoBills]

My mind works in amps. Off the top of my head I figure you'll need 40 amps, minimum, on the 12v rail. I'm pretty much a noob, so put that in your calculations.

 

[Lonyo]

Originally posted by: TwoBills
My mind works in amps. Off the top of my head I figure you'll need 40 amps, minimum, on the 12v rail. I'm pretty much a noob, so put that in your calculations.

Go with an Enermax PSU, they load up the 12v rail, and at ~2A possibly per HDD on the 12v rail, that's 30A for the HDD's, then you need probably ~10A for other stuff (maybe up to 15A) which means 45A total on the 12v rail.

 

[denon]

One PSU might work, but why take a chance? You are obviously spending a good amount of money, so you might as well do it right. Get 2 name brand (antec, enermax, etc.) PSUs with your system and don't take any chances. I've never heard someone complain about having too much power for their system. Also, why are you using SATA, not SCSI, drives on this system? If it is price, that is the obvious answer, but if price isn't the issue, I am curious as to why.

 

[TwoBills]

Yeah, I agree. I put the "minimum" in there, real quick, after I thought about it for a second. I was basing my calcs. on 2.5a/device (my ide seagate pulls 2.8a). I figure, w/o acually knowing, that sata drives pull less.

So I figure 2.5 x 15 + 10 = 47. Add 30% and you get 61a (600w, right?). Just about what everyone is saying. But, I'm a bit of a minimalist, as I suspect Lonlo is, and realize all 15 devices aren't going to be pulling at the same time?

Looks like the duel 430's are only going to give you 40amps, together.........I must be missin' something. Going by NE specs, and just considering the amps on the 12v rails, (2) 350w Enermax's will give you 52amps, combined. With those specs., I'd do the duel 350s. BTW, the 460 and 550 look like better units than the 600s and 660s, again, just going by the amps available on the 12v rails

 

[jose]

Cost is an issue because it's going to be only a file server. Scsi would cost way too much. So far it's only cost ~$4000 for 2250+ gigs of storage..

So dual 460's would be better than a single 600w ps ? (Antec or Enemax)

Thanks for all the replys..

Regards,
Jose

 

[TwoBills]

Two Enermax 460s will give you combined total of 66 amps on the 12v rail ($75ea.). The single 600 will only give you 35 amps (v1 and v2) and that sucker costs $189. Like I said above, I'm a noob, and I think I'm missin' something. Board compatibility maybe? Misreading the specs? Something. I'd be tempted to go w/duel Enermax 350s ($59 ea. 52 amps total) if the budget is tight. But those 460s look good.

Bump for somebody that knows what they're talkin' about.

 

[LanFear]

I'd look into redundant power supplies. With the amount of storage capacity you're talking about, you'll want some power failover capabilities for sure.

 

[LanFear]

What board is this server running off of btw?

 

[caz67]

Dual Antec 550W

 

[jose]

Thanks, I'll go w/ the two Enermax 460's.. Plan on using a SuperMicro P4SCT+II mobo, it has 64bit/66mhz slots, which we'll use the 3Ware 12 port sata raid 5 controller.
We'll also use 2 - 36g raptors in raid 1 for the boot os drive. Found a Codegen case at newegg, w/ this case we can use 2 power supplies.. I believe we'll use a 20 pin Y-connector to
have both power supplies turn on at the same time...

Regards,
Jose

 

[dartworth]

cool project...pics are needed

keep us up to date

 

[LanFear]

Yeah i'd definately like to see some shots of this rig when it's completed

 

[Zepper]

I was thinking the Berserker case from Silverstone would do you, but maybe not. There is another similar model with 4x5" bays up top and 3x5" bays in the bottom (twox5-drive hot swap cages plus one optical drive) and there is room for at least four more 3.5" HDs using both the external and internal 3" bays plus two more on the sidebar if needed. I'm not sure who makes the bigger versions. Also look at the Codegen SR-101/201 - I know dealsonic.com usually has them and sometimes newegg.

.bh.

:moon:

 

[jose]

Zepper which case are you talking about ?? (two-5-drive hot swap cages) ?? Couldn't find any info on a Berserker case from Silverstone.


Regards,
Jose

 

[Zepper]

In that little search block at the upper left of the newegg home page, type berserker - then select Cases from the drop down list just below - then click submit. Voila..
. I should have said that two 5-drive hot-swap cages would fit in the Berserker, not that they are included (not at under $60. w/o PSU...).
.bh.

:sun:

 

[Lonyo]

I think there's also a way to delay the boot up of each drive (possible a SCSI thing, not sure, may be a controller card thing), so you can set a boot delay or say, 2 seconds, between drives, so they are not all trying to draw power to spin up at the same time, much easier on the PSU.

 

[GnomeCop]

call PC Power and cooling and ask about their 800watt psu.
the one that will be used to power the dual cpu/vide ALX system hahah.

 

[jose]

Thanks , the berserker is too small for 14 drives + a dvd + floppy. Will check on the 800 watt ps.. :0

Regards,
Jose

 

[Arcanedeath]

Dual 460watt Enermaxes should be fine, although if you want to go w/ a single PSU one of PC power and Cooling custom units might be in order. (it's gonna cost alot more though) also I'd suggest a serious UPS for this system, something in the at least 1500VA range or higher for just the PC.

 

[Zepper]

How about the A-GPB CA-812? It has 7x5" bays allows for two 5-drive cages plus DVD. you can use one external 3" bay for a hd - two more on the sidebar. You can fit another above the top 5" bays and perhaps one or two more in the bottom (I'm talking a minor mod job here ) . The PSU mounting plate is removable to add an oversize PSU.
And that leaves the Codegens - have you looked as the S-101. There's plenty O' room for drives and dual PSUs... Not as sturdy as some perhaps, but it can definitely store some drives!
bh.

Here, have a :beer: !