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PERC 5/i RAID Card: Tips and Benchmarks - Page 488

post #4871 of 7174
Quote:
Originally Posted by sampep;11914440 
Hey guys, just a quick post here to let you know that i have tried 3x 3tb on the perc 5i and the card could not use all the space on the drive.

Instead of the 2.7 TB per drive , i only got 2.1 (seem like that is the same limitation has xp)
I could make it work with the 2gb limitation, but the speed was terrible, average was 50MB/s ... my other card with 6x1tb green drive is 4x faster...

The HDD work fine on the mobo sata , fast and 2.7TB each.
The drive'S are seagate barracuda XT


Is there a work around?
I have the latest FW from LSI.
I would like to use my 2nd perc for those new HDD instead of software raid in 2k8.

Thanks

3tbfail.jpg



Sam

According to Dell, not yet. Support for >2TB drives requires a firmware upgrade, and they only mention upgrades for the H series of adapters. I am sure it is a similar response from LSI, because these are legacy, unsupported cards at this point.
Quote:
Originally Posted by dell.com 
Hard Drive Controllers –
Hard drive controllers, such as the Dell PERC and SAS controllers, have firmware that needs to provide support for >2TB drives. Dell supports these large hard drives on the Dell PERC H700 and H800 and soon, the H200 controller at a later date. In addition, firmware support is also specific to the type of drive – SAS and SATA. The SATA firmware will also support SAS, but SAS support will precede SATA support by a few months.

Dell PERC H700 and H800 –

The following firmware revision (or later) must be applied on the Storage Controller Cards to obtain support for >2 TB drives. The firmware release numbers and revisions are below:

For SAS drives >2TB: 7.1 FW A02/12.3.0-0032

R269683 – H800; A02 ( listed as DELL_PERC-H800-ADAPTER_XX_XXXXXXX.exe at the below download link)
R269684 – H700I: A02 ( listed as DELL_PERC-H700-INTEGRATED_XX_XXXXXXX.exe at the below download link)
R269685 – H700A; A02 ( listed as DELL_PERC-H700-ADAPTER_XX_XXXXXXX.exe at the below download link)
R269686 – H700M; A02 ( listed as DELL_PERC-H700-MODULAR_XX_XXXXXXX.exe at the below download link)

SATA Support – SATA drives will be supported in Q1, 2011.


The above mentioned releases of firmware can be downloaded from http://ftp.us.dell.com/sas-raid/.

http://www.delltechcenter.com/page/HDD+Support+for+2.5TB,+3TB+Drives+and+Beyond
    
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post #4872 of 7174
Guys i need little help..

Does anyone know if i can reflash perc 5/e bios with lsi one ?' will it work. I know it works on perc 5/i but i dont know if its compatible with perc 5/e ?.. THX
post #4873 of 7174
Hi all
After reading this thread, i decided to purchase a PERC 6i from ebay.
My config ...
CPU: Intel i7-860
RAM: 16GB RAM (Kingston DDR3 1333Mhz)
Mobo: Asus P7H55M
HDs: 4 x 1TB Samsung F3
NIC: 2 x Broadcom BCM5721

I planning to build ESXi 4 test lab with this box. I have never been able to detect any of my SATA drives on this card using SFF8484 -> SATA cable (purchased from ebay)
http://cgi.ebay.co.uk/BNIB-SAS-Sata-Multilane-cable-/220720077032?pt=LH_DefaultDomain_3&hash=item3363f118e8#ht_500wt_1156

Since nothing was working, I decided to flash the firmware on the PERC 6i with different versions (old and new) obtained from ftp.dell.com/sas-raid now my card wont even boot! I get 'Memory error on boot up'

Last Firmware: DELL_PERC-6-I-INTEGRATED_A03_R178172.EXE

I started with the latest and worked back to the oldest

My question
Is my PERC 6i bricked?

Any help, appreciated.
post #4874 of 7174
I'm looking to pick up a battery for my perc 5i which should be here in a week or so, I see some on ebay that don't show a power connector coming out of the battery, if it doesn't come with this cable can anyone tell me what i'm looking for? Since I don't have the card in front of me yet, is it obvious where the battery plugs into the card?

from what I've read it sounds like the performance increase from having a battery is well worth the extra cost, would you agree?

I'm planning on running 4x 1.5 tb in a raid 5 as a video data backup, I assume it's not a good idea to try editing off of this array.

I will also setup a 4x 1tb raid 10 on the same card, you can run a max of 8 drives off one Perc 5i right?

My OS will be run off of a dedicated 120 gig SSD as well as my applications, this rig will be primarily for video editing purposes.

I have an 850 watt power supply, i'm running an i7 920 with dual GTX275's though i'm considering upgrading to a single gtx 470 or 570. 12 gigs of DDR3 1600 ram. Will my Power supply be enough to power all of this and 9 hard drives?

Any advice or thoughts are welcome.
post #4875 of 7174
Quote:
Originally Posted by sentrosix;11957884 
I'm looking to pick up a battery for my perc 5i which should be here in a week or so, I see some on ebay that don't show a power connector coming out of the battery, if it doesn't come with this cable can anyone tell me what i'm looking for? Since I don't have the card in front of me yet, is it obvious where the battery plugs into the card?

from what I've read it sounds like the performance increase from having a battery is well worth the extra cost, would you agree?

I'm planning on running 4x 1.5 tb in a raid 5 as a video data backup, I assume it's not a good idea to try editing off of this array.

I will also setup a 4x 1tb raid 10 on the same card, you can run a max of 8 drives off one Perc 5i right?

My OS will be run off of a dedicated 120 gig SSD as well as my applications, this rig will be primarily for video editing purposes.

I have an 850 watt power supply, i'm running an i7 920 with dual GTX275's though i'm considering upgrading to a single gtx 470 or 570. 12 gigs of DDR3 1600 ram. Will my Power supply be enough to power all of this and 9 hard drives?

Any advice or thoughts are welcome.

i have a 600W PSU that powers two 130W TDP 3.8Ghz Xeons, 8x 7200RPM HDD... but I don't know how much juice your video cards require?

if you're using this for video editing, i hope you also realize that data integrity is hard to ensure with large disk arrays using 500GB or larger drives. i'm not saying you can't do it, but you need to consider RAID arrays using large drives like 1 or 1.5TB as somewhat unreliable. encounter 1 URE during a rebuild and kaboom! don't depend on this array if the data is important to you; make sure you have a backup elsewhere.

if you want sequential I/O throughput, you're better off using all 8 drives in a single RAID-5 array for maximum performance. a 8x HDD RAID-5 will easily outperform a 4x HDD RAID-10 in almost every benchmark and data access pattern. within that VD, you can partition it however you like if you want to keep things logically separate. from a performance stand point, the only reason you want to split the drives into different arrays is if you require one with random I/O performance vs the other with sequential I/O. for random I/O, consider adjusting the stripe size close to your average data "chunk" size and using higher RPM drives or SSD.
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TAIPEI
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post #4876 of 7174
Quote:
Originally Posted by BLinux;11957956 
i have a 600W PSU that powers two 130W TDP 3.8Ghz Xeons, 8x 7200RPM HDD... but I don't know how much juice your video cards require?

if you're using this for video editing, i hope you also realize that data integrity is hard to ensure with large disk arrays using 500GB or larger drives. i'm not saying you can't do it, but you need to consider RAID arrays using large drives like 1 or 1.5TB as somewhat unreliable. encounter 1 URE during a rebuild and kaboom! don't depend on this array if the data is important to you; make sure you have a backup elsewhere.

if you want sequential I/O throughput, you're better off using all 8 drives in a single RAID-5 array for maximum performance. a 8x HDD RAID-5 will easily outperform a 4x HDD RAID-10 in almost every benchmark and data access pattern. within that VD, you can partition it however you like if you want to keep things logically separate. from a performance stand point, the only reason you want to split the drives into different arrays is if you require one with random I/O performance vs the other with sequential I/O. for random I/O, consider adjusting the stripe size close to your average data "chunk" size and using higher RPM drives or SSD.

Thanks for the tips, so one large RAID 5 (i thought there was a max of 5 drives) would give me the best performance but I'd be at a risk of losing my data? It's definitely important material that I can't risk losing, I'm currently editing off a mirrored raid for backup reasons and i'm sure the speeds are slowing me down.

I don't mind transferring files over from a large backup (RAID 5) over to my faster RAID 1 or 10 array to edit with them, the RAID 5 would be for storage more than editing on, I understand that writing large quantities of data to a RAID 5 isn't the best idea.

Thoughts?

I guess my question is for best safety/speed (obviously you have to sacrifice somewhere) using 1tb and 1.5 tb drives what would you recommend. (Safety is more important than speed)

I already have the drives (from other backups that I want to combine into a large easier to access RAID) so I can't really choose better options... Is it safer (make more sense) to have multiple Mirrored RAIDs?
Edited by sentrosix - 1/10/11 at 2:56am
post #4877 of 7174
Quote:
Originally Posted by sentrosix;11958019 
Thanks for the tips, so one large RAID 5 (i thought there was a max of 5 drives) would give me the best performance but I'd be at a risk of losing my data? It's definitely important material that I can't risk losing, I'm currently editing off a mirrored raid for backup reasons and i'm sure the speeds are slowing me down.

I don't mind transferring files over from a large backup (RAID 5) over to my faster RAID 1 or 10 array to edit with them, the RAID 5 would be for storage more than editing on, I understand that writing large quantities of data to a RAID 5 isn't the best idea.

Thoughts?

I guess my question is for best safety/speed (obviously you have to sacrifice somewhere) using 1tb and 1.5 tb drives what would you recommend. (Safety is more important than speed)

I already have the drives (from other backups that I want to combine into a large easier to access RAID) so I can't really choose better options... Is it safer (make more sense) to have multiple Mirrored RAIDs?

if safety first is your concern, get the largest drive you can find and make a 8-way mirror of those drives. then you can have 7 drives fail on you and still survive. add on top of that a scheduled job to check data integrity by creating parity files with a PAR2 tool or similar. then your data will be safe. biggrin.gif

if the largest drive available isn't big enough for you, then your next safest option would be to do a RAID-10 on the least number of hard drives. the more drives the higher your chance of a problem.

*most* data is not that sensitive to bit rot... compressed video streams are often lossy compression and so a few bits flipped isn't going to matter that much. but some people store their data in raw format, and they do care about bit rot.... in which case, make sure to create parity for your data and have regular integrity checks. I don't trust modern sata drives larger than 1TB for data integrity at all.... considering how frequently i see the problems happening over the last few years.
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Dual Quad-core L5430 2.66Ghz 12mb cache Intel 5000 chipset ATI ES1000 64GB FBDIMM DDR2 PC2-5300 667Mhz 
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TAIPEI
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post #4878 of 7174
can someone please recommend the correct 1 meter cable?

currently on my second set of cables that are not correct. the cables i've received have 2725 on them.

(going crazy)
post #4879 of 7174
Well I had to RMA 2 failed Wester Digital Caviar Black WD5000AAKS 500GB drives and it looks like they don't support the TLER fix. Google searching yielded others sharing similar experiences frown.gif

I guess I'm going to pull one of my older Caviars, run the fix, and use it as a hotspare.

So anyone here running a hotspare with RAID5? Is the rebuild time the same as unplugging a drive then plugging it back in?
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post #4880 of 7174
Hi all smile.gif
Signed up here just for this thread as I have been reading it for days now when I can.

I just setup a new gaming rig and am tweakign and getting everything just right on it now.

I had a Dell server I decommisioned at work and was going to set it up as a new WHS, and it had the PERC 5/i card in it with 3 Seagate ST3300555SS 10k rpm 300GB drives

Really I don;t need the drives in the server, nor the card since I have 5 1TB drives and a 320GB drive I'll be using.

So I took the raid card and drives, put it in my machine and setup the 3 drives in a RAID 0 config (I'll have to check on stripe size I think I used 32 or 64k). Windows 7 installed fine and here are the results I got:


Raid0Read.jpg

I left everything at default for HT Tune and have to look at what options I checked inthe RAID BIOS. Thsi is my OS drive so that may explain the big spikes.

But just to double check...

What settings should I be using for best performance in your opinions?

Windows 7 doenst need drivers installed for optimal performance, the default ones and updated ones through windows update should be fine correct?

cooling i am going to mount a fan to it, but I have a ton of fans in the case. The case has the power supply at bottom and the card sits right by it so it seems like the air flows past it well enough and out the power supply fan.


System is a i5 750 @ 4.01GHz, Asus H57 board, 8GB DDR3 1600, Nvidia 470, BLu-Ray Reader / Writer, win 7 x64. So far I love it but I know there is more I can do smile.gif if and when the prices of SSDs go down and the storage capacity goes up I'll invest in those, but in the mean time using what I got as I'm broke as hell!!
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