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PERC 5/i RAID Card: Tips and Benchmarks - Page 610

post #6091 of 7183
Yes. You can do online capacity expansion for RAID 0. You CANNOT SHRINK THE NUMBER OF DISKS without losing Data on this controller. EG, you cannot remove 1 HDD from a 3 HDD Array without a reinstall/restore. So if you plan is to attempt to remove 1 HDD from the RAID 0 array and still have it function, that will not work.
post #6092 of 7183
Well, I got my 5i here now, mounted a small 40mm fan on the factory heatsink, and installed it in my x58 i7. I don't have any cables yet to connect any drives, for right now it's just a test to see how thermals work, maybe get the LSI software and see what it can tell me about the card even with no arrays, and mainly to see how the performance of my system works with my two video cards in here.

I did take some pics while I had my card out though. I had to take the heatsink off to get the fan mounted, and clean out the under-side and put some arctic silver 5 on it when I put it back together (Can't hurt, right?) so thought I'd share some higher resolution shots of the main processor if any of y'all are wondering what those teeny tiny numbers on the surface of it are.

PERC 5i

Main Processor

Main Processor's Chip (Close-Up)

Installed in i7

Seems the crossfire bridge will perfectly flex a little to go beside one of the cables, so it all looks good so far.

And before you say anything, blame cooler master for !@#$%@# design on that heatsink, the plastic clip broke when I was trying to mount it to that fan, so I had to zip-tie and envision my own mounting system, it works.

I7-950 LGA-1366 OC @ 4185mhz
Mushkin BlackLine RidgeBack DDR3-1066 OC @ 2068mhz
2 x XFX Black Edition HD 7770, OC @ 1150 core / 1500 (6000 effective) mem.

Right now, 4 x 160gb 7200 rpm western digital WD1600AAJS hard drives, Blue series I think.

Planning to ultimately some day end up with 8 x 73.4gb 15k rpm SAS drives in raid-6, probably start with 4 and expand as money permits until fully populated over time.

I found (and plan to buy) one of these cables: http://www.ebay.com/itm/140508142539 I found one for $5 less, but it relies on molex connectors and this one works off SATA-Power connectors, which I have more of from my power supply than I do molex connectors, so that'd work out better for my situation. USA seller too.
Edited by kithylin - 12/3/12 at 8:42pm
post #6093 of 7183
You won't be able to do a RAID 6 on a PERC 5/i, you'll need a PERC 6 for that.

Personally i think your just throwing your money away getting SAS drives, it would probably work out cheaper if you got some SSDs e.g. 2 SSDs in RAID 1 or RAID 0 (if you have good backups). With just 2 SSDs you'll probably max out the card speed wise. Also having 8 15k RPM drives will be extremely noisy I think.

If i were you i would get a fast SSD and put it on your motherboards SATA3 port and get some 2TB (the card doesn't support anything bigger) WD Reds or Blacks and either RAID 5 or RAID 10 them on the PERC 5/i.
post #6094 of 7183
I must be old school because I really really don't trust SSD's yet, not long-term for stuff I use daily. And they're still rather expensive, a fast IOPS one is $125 each, too expensive for a single drive for me (and those are 64gb versions even). I think some people still forget that flash memory based SSD drives DO have a limit to the amount of writes they can do before they fail and they're useless. The manufacturers claim that it's a longer period than the MTBF of hard drives, but it is a permently fixed, etched in stone limitation. All SSD drives will die, at some point. Where as I have 5mb mechanical MFM hard drives that still work in my 286, and older < 1gb hard drives with no bad sectors. Sorry, but I'm sticking to mechanical hard drives for quite a lot longer yet.

Also, I don't need a lot of storage, I already have 8 x 3tb hard drives in raid-5 on an ACERA raid controller in another computer, the i7 is for reliable storage for daily use, and I strongly dislike ACERA raid controllers and if this PERC works out I'll probably switch it to a PERC6 later in the other machine.

Couple hundred gigs is fine for my i7, it only runs games and benchmarks and nothing else, and 6x or 8x 15k sas drives would be as fast as SSD(s), but very very stable long-term.

I'm using raid-0 right now on my i7 with those 160gb drives and I haven't had a failure yet but would really be nice to have hardware raid for it instead (at least raid 5) that's the main reason I built that system, and still use x58: it runs my two video cards at 16x16x pci-e 2.0 full speed while still running this raid card at 8x at the same time. I've always wanted a hardware raid card for this system since I built it, and finally I'm going to realize that dream, it just took a long time. I bought an expensive motherboard because it does true-3-way-16x pci-e cards at the same time, using one of those for the raid card now, but still.

And the HP-Fujitsu 15k sas drives are rated at 36db operating sound (heavy read/write) and 18db idle, I've already looked up the data sheets, so not very loud at all even if using multiple. I have some older HP/COMPAQ 15k rpm SCSI Drives I use in another computer (5 of em, SCSI raid), using a Dell PERC 2, they're rated at 40db read/write and 20db idle, and I can't even hear those over the case fans, so sas drives should be fine.

I actually didn't realize the PERC5i didn't do raid6, some how, but that's okay, guess I'll survive with 5 then, better than 0.

I've already researched all of this on the hard drives side and know what I want, thanks for the suggestions, though.

And a note: the sas drives I want are $17 each shipped off of ebay, which ebay buyer protection is essentially a 45 day warranty on everything bought on ebay.
post #6095 of 7183
Quote:
Originally Posted by mahirzukic2 View Post

Nice, since I've had 3 1TB disks in raid0, and it kept failing on me. Then I tested all of them and found out that 1 is kinda faulty. I've put that one on scanning and repairing ( remapping). Hopufully it will finish in a day or two, and until then I can set up a raid0 consisting of 2 disks and then add the 3rd later on, after the procedure is complete.

i think u r gonna lose all your data next year, cheers...
post #6096 of 7183
Quote:
Originally Posted by kyle5281 View Post

Yes. You can do online capacity expansion for RAID 0. You CANNOT SHRINK THE NUMBER OF DISKS without losing Data on this controller. EG, you cannot remove 1 HDD from a 3 HDD Array without a reinstall/restore. So if you plan is to attempt to remove 1 HDD from the RAID 0 array and still have it function, that will not work.
I was planning on initially having 2 disks in Raid0 array, and adding 3rd disk to the raid. This can be done using online expansion?
Quote:
Originally Posted by kcinick View Post

i think u r gonna lose all your data next year, cheers...
I dont have any important data on the raid, its purely for speed and lolz. All the important stuff is located on a 1.5TB WD greeny.
Edited by mahirzukic2 - 12/5/12 at 4:00pm
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AMD Athlon x4 635 Asrock 890GX Extreme3 MSI 7950 Frozr V2 Geil 16GB (4 x 4GB) 1600MHz 1.35v 
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Samsung 840Pro 256GB + 2x1TB Seagate + 3TB Seag... LG DVD-RW Scythe Mugen 2 with push/pull combo Windows 7 x64 Ultimate 
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post #6097 of 7183
Why don't you get a 4th HD and do RAID10? Then you get performance and reliability. I don't recognize RAID5 if you have SATA HDs.

A single drive is marginally better than RAID0 when it comes to protecting data.
post #6098 of 7183
Yes It can be done. I would recommend adding another HDD and going with a RAID 10 instead if you are looking for speed and reliability.
post #6099 of 7183
The thing is im not concerened about reliability, only speed, and I'd hate to spend money on another disk if I dont really need to.
Nice PC
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CPUMotherboardGraphicsRAM
AMD Athlon x4 635 Asrock 890GX Extreme3 MSI 7950 Frozr V2 Geil 16GB (4 x 4GB) 1600MHz 1.35v 
Hard DriveOptical DriveCoolingOS
Samsung 840Pro 256GB + 2x1TB Seagate + 3TB Seag... LG DVD-RW Scythe Mugen 2 with push/pull combo Windows 7 x64 Ultimate 
MonitorKeyboardPowerCase
Samsung T240HD X7 G800 Corsair CX400 Chieftec CX01 
MouseMouse PadAudio
Speedlink KUDOS gaming mouse Razer Goliathus HUGE Asus XONAR DX 
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Reply
Nice PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD Athlon x4 635 Asrock 890GX Extreme3 MSI 7950 Frozr V2 Geil 16GB (4 x 4GB) 1600MHz 1.35v 
Hard DriveOptical DriveCoolingOS
Samsung 840Pro 256GB + 2x1TB Seagate + 3TB Seag... LG DVD-RW Scythe Mugen 2 with push/pull combo Windows 7 x64 Ultimate 
MonitorKeyboardPowerCase
Samsung T240HD X7 G800 Corsair CX400 Chieftec CX01 
MouseMouse PadAudio
Speedlink KUDOS gaming mouse Razer Goliathus HUGE Asus XONAR DX 
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post #6100 of 7183
Quote:
Originally Posted by mahirzukic2 View Post

The thing is im not concerened about reliability, only speed, and I'd hate to spend money on another disk if I dont really need to.

Even if you're running raid-0, every disk you add to it increases speed and performance, although also increases latency a little bit, and increases the chance of failure, but.. if you want speed, more disks = more speed.
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