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post #1161 of 4216
I thought you guys would be the best people to ask, what drives would you all recommend for a 4 x 2TB RAID5 setup? I'm going to assume you're all going to say steer clear of WD greens/blues?
post #1162 of 4216
Quote:
Originally Posted by Jeci View Post

I thought you guys would be the best people to ask, what drives would you all recommend for a 4 x 2TB RAID5 setup? I'm going to assume you're all going to say steer clear of WD greens/blues?

I personally prefer Hitachi. I remember a study that, perhaps Google, did that found they have a better MTTF. I "think" it's the drive of choice for them as well.

With that said, almost any enterprise level drive would be better than consumer.

I have zero experience with the new WD Reds.
    
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post #1163 of 4216
Quote:
Originally Posted by killabytes View Post

I personally prefer Hitachi. I remember a study that, perhaps Google, did that found they have a better MTTF. I "think" it's the drive of choice for them as well.
With that said, almost any enterprise level drive would be better than consumer.
I have zero experience with the new WD Reds.

I think you mean "MTBF", hehe. But I agree...I am a huge Hitachi fan, and since Hitachi is now owned by Toshiba...I am a big fan of Toshiba (for consumer drives). The DT01ACA300 drives are 3TB, 65MB Cache, 7200RPM...2 year warranty, around $150. They have CCTL (which is their version of WD's TLER, which is only available in WD enterprise drives, or the newer WD REDs).

So if you are looking for 2TB drives...I would highly recommend this:
Toshiba DT01ACA200 - 2TB, 7200RPM, 64MB Cache, SATA III...2 year warranty, $109.99

(Newegg has the warranty information listed wrong. On Toshiba's site they clearly state their DT01ACAx00 drives have a 2 year warranty)
post #1164 of 4216
Quote:
Originally Posted by tycoonbob View Post

I think you mean "MTBF", hehe. But I agree...I am a huge Hitachi fan, and since Hitachi is now owned by Toshiba...I am a big fan of Toshiba (for consumer drives). The DT01ACA300 drives are 3TB, 65MB Cache, 7200RPM...2 year warranty, around $150. They have CCTL (which is their version of WD's TLER, which is only available in WD enterprise drives, or the newer WD REDs).
So if you are looking for 2TB drives...I would highly recommend this:
Toshiba DT01ACA200 - 2TB, 7200RPM, 64MB Cache, SATA III...2 year warranty, $109.99
(Newegg has the warranty information listed wrong. On Toshiba's site they clearly state their DT01ACAx00 drives have a 2 year warranty)
Hitachi is WD. wink.gif
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post #1165 of 4216
Quote:
Originally Posted by phill1978 View Post

Quote:
Originally Posted by Dream Killer View Post

RAID5 is such a terrible thing. I'm glad someone also sees the light in ZFS here.
ZFS is so easy to use that a front end for a couple of zpools is unnecessary. If you're comfortable with the CLI, you should just do a bare illumos install to remove the overhead of ZFS Guru.
ZFS stores information in the metadata inside the zpool's drives. You can yank out all the members of the zpool, transplant them in a different os that supports ZFS or even a different architecture and just type 'zpool import'. The zpool automagically restores itself - smb/cifs shares and all.

nice biggrin.gif

do you still use the thumb drive for anything? i have ZFS guru running on an usb 3.0 internal header with a thumb drive attached (overkill as its 64gb)

I use an internal flash drive for initial boot into the OS. I store Zones, KVMs and SMB shares inside the ZFS pool.
Quote:
Originally Posted by Jeci View Post

I thought you guys would be the best people to ask, what drives would you all recommend for a 4 x 2TB RAID5 setup? I'm going to assume you're all going to say steer clear of WD greens/blues?

Companies saw the trend in SOHO RAID setups and are making products targeting such people. It's really sad because it wasn't that long ago when Seagate made a good, well-rounded drive like the 7200.11 at cheap prices and slapped a 5 year warranty on it. Don't worry about what a company wants you to buy, do your research and look at what you expect out of your array.

Some questions to ask yourself:

What kind of load am I going to put through drives?
Most SOHO drives spend most of their lives idle.

What kind of environment are the drives subjected in?
Cool the drives properly and make sure they're mounted in a way to isolate and reduce vibration from the other drives. Don't move your server while it's live, yatta yatta yatta.

When (NOT 'IF'!) a drive fails, can I afford an extra one?
You need 4x for the array, get 5. Sometimes the cheaper drive makes more sense than the more durable, expensive one.

I personally went with the cheapest WD Green drives. They have lower MTBF, don't tolerate vibration as much and are a bit slower. However their price point allowed me to buy more of them so it's cheaper to replace the failed disks. I currently have 2 brand new ones in caddies ready to go should drives fail on the live array. After all, we chose redundancy because we expect failure, right?

When a controller fails, will I find another one?
Controllers fail just as bad as drives - it's never graceful. Finding a cheap PERC6i on eBay is nice but they've been most likely been pulled from a hard-working server that has been running 24/7 the past 6 years. RAID is also different per controller so it would be near impossible to recover your data if another controller can't be found. Buy two.

I chose ZFS because they're not controller dependent. One less device to fail and replace.
Edited by Dream Killer - 1/6/13 at 2:23pm
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post #1166 of 4216
Quote:
Originally Posted by tycoonbob View Post

I think you mean "MTBF", hehe. But I agree...I am a huge Hitachi fan, and since Hitachi is now owned by Toshiba...I am a big fan of Toshiba (for consumer drives). The DT01ACA300 drives are 3TB, 65MB Cache, 7200RPM...2 year warranty, around $150. They have CCTL (which is their version of WD's TLER, which is only available in WD enterprise drives, or the newer WD REDs).
So if you are looking for 2TB drives...I would highly recommend this:
Toshiba DT01ACA200 - 2TB, 7200RPM, 64MB Cache, SATA III...2 year warranty, $109.99
(Newegg has the warranty information listed wrong. On Toshiba's site they clearly state their DT01ACAx00 drives have a 2 year warranty)

I do. For some reason my phone decided that MTTF was a word.
    
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post #1167 of 4216
Quote:
Originally Posted by Citra View Post

Hitachi is WD. wink.gif

Yes and no. wink.gif

Hitachi was bought out by Western Digital Company, but to satisfy FTC regulations about the purchase (and to avoid a duopoly -- WD and Seagate), they sold the 3.5" consumer division of Hitachi (including all IP, facilities, and patents) to Toshiba...ergo, Toshiba now owns the Hitachi Deskstar line.

WD owns the Hitachi Ultrastar line (enterprise SATA, NL-SAS, and SAS).

Heck, the new Toshiba DT01ACA200 and DT01ACA300 clearly state on the drive label that it was made by Hitachi. It actually says:
MADE IN CHINA BY Hitachi Global Storage Products (Shenzhen) Co., Ltd. CN

You can see it on the product pictures on Newegg at the link I posted above, but in case you want better proof...here is a photo of MY Toshiba DT01ACA300 (3TB):


Here are some links as well that were posted during this acquisition period:
http://www.techspot.com/news/46396-western-digital-cleared-to-buy-hitachi-gst-with-conditions.html
http://www.tomshardware.com/news/wd-toshiba-hdd-hard-drive,14858.html

Boy I'm getting tired of answer this question.
post #1168 of 4216
ok then server people. I have a really dumb question redface.gif

how do you know which drive has failed out of the many? i.e physically which sata port? what is your method? i would say physically label each drive and work out which one is named SDB/SDD/SDC etc.. on the system in correspondence is this correct? *this is if your running off the on board sata and have no lights or obvious signs
post #1169 of 4216
Quote:
Originally Posted by phill1978 View Post

how do you know which drive has failed out of the many? i.e physically which sata port? what is your method? i would say physically label each drive and work out which one is named SDB/SDD/SDC etc.. on the system in correspondence is this correct? *this is if your running off the on board sata and have no lights or obvious signs

I usually assign the drives in sequence (sda is on the first SATA port and in the first drive bay, so on and so forth). Makes it trivial to see a failed array drive and just pull the right one without any effort, the first time. You can also match up the model and serial numbers and then do a `lshw -class disk` to verify where everything is virtually before assigning mount point by UUID.
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post #1170 of 4216
Quote:
Originally Posted by phill1978 View Post

ok then server people. I have a really dumb question redface.gif
how do you know which drive has failed out of the many? i.e physically which sata port? what is your method? i would say physically label each drive and work out which one is named SDB/SDD/SDC etc.. on the system in correspondence is this correct? *this is if your running off the on board sata and have no lights or obvious signs

Are they connected to a RAID controller or just onboard SATA?

My RAID card allows me to flash each LED to identify each HDD.
    
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