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Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

TeknoJnky
Hero

Seagate ST4000DX000-1C5160 [3726 GB] 4TB

firmware cc42 date 12047 dom 7/2011

bare drive pulled from usb3 external @ http://www.amazon.com/Seagate-FreeAgent ... 914&sr=8-1

single drive, boot menu factory defaulted, all frontview defaults.

ultra 4: 4.2.20-t4, no JF, single nic
217 MB (0%) of 3696 GB used
Ch 1 : Seagate ST4000DX000-1C5160 [3726 GB]
3721 GB allocated
drag/drop 15g from ssd via cifs gbit to default backup share
peaks of ~80-85 mibs
windows dialog reported speed ~45 mibs

pro business (v1): 4.2.17, no JF, single nic
217 MB (0%) of 3696 GB used
Ch 1 : Seagate ST4000DX000-1C5160 [3726 GB]
3721 GB allocated
drag/drop 15g from ssd via cifs gbit to default backup share
peaks of ~115mibs
windows dialog reported speed ~79 mibs

reading same 15g file back to ssd showed 110 on windows copy dialog, constant 115-118 on netmeter

other notes;
only 1 drive at this time, so unable to test raid/expansion
drive seems to be pretty quiet, can't really hear it over the device fans
spent about 30 minutes on each device, so no extended testing, just setup and a few drag/drop transfers

Can't wait for tax return time or saving up for 5 more drives, I'm looking forward to 6x 4tb in dual redundancy.



Model: ST4000DX000-1C5160
Serial: Z1[removed]
Firmware: CC42
SMART Attribute
Spin Up Time 0
Start Stop Count 10
Reallocated Sector Count 0
Power On Hours 1
Spin Retry Count 0
Power Cycle Count 10
Reported Uncorrect 0
High Fly Writes 0
Airflow Temperature Cel 31
G-Sense Error Rate 0
Power-Off Retract Count 8
Load Cycle Count 16
Temperature Celsius 31
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Head Flying Hours 187685775867905
ATA Error Count 0
Message 1 of 51
TeknoJnky
Hero

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

added second 4tb drive to ultra 4

Sun Nov 6 02:19:00 CST 2011	RAID sync finished on volume C.
Sat Nov 5 20:08:54 CDT 2011 Data volume has been successfully expanded to 6471 GB.
Sat Nov 5 17:33:38 CDT 2011 System is up.
Sat Nov 5 17:33:33 CDT 2011 Continuing with volume expansion or migration. Do not interrupt the system during this time. When complete, email notification will be sent to the alert contact list.
Sat Nov 5 17:31:20 CDT 2011 Rebooting device...
Sat Nov 5 17:31:20 CDT 2011 Please close this browser session and use RAIDar to reconnect to the device. System rebooting...
Sat Nov 5 17:25:10 CDT 2011 Found space that can be used to expand capacity, expansion process will start during next boot.
Sat Nov 5 17:25:05 CDT 2011 Found space that can be used to expand capacity, expansion process will start during next boot.
Sat Nov 5 17:24:23 CDT 2011 Found space that can be used to expand capacity, expansion process will start during next boot.
Sat Nov 5 17:24:01 CDT 2011 RAID sync finished on volume C.
Sat Nov 5 11:29:08 CDT 2011 RAID sync started on volume C.
Sat Nov 5 11:28:43 CDT 2011 Data volume will be rebuilt with disk 4.
Message 2 of 51
dsm1212
Apprentice

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

Do you have any idea what the specs are on this drive? RPM, Cache, etc? Or even which seagate drive class it is? I can't seem to find anything detailed from seagate yet. Thanks.
Message 3 of 51
dsm1212
Apprentice

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

Also, I wonder if those enclosures could take a smaller seagate drive. Hmmm. If I could bump two of my 1TB seagates out of the nas into those enclosures that would give me 5TB in the NAS and a total of 4TB for backup. Very tempting with these drives on sale at Bestbuy today.

steve
Message 4 of 51
TeknoJnky
Hero

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

http://www.anandtech.com/show/4758/seag ... hdd-review
http://www.anandtech.com/show/4738/seag ... ternal-hdd
http://www.anandtech.com/show/5042/seag ... 001-review

the bottom of the case comes off and is simply a sata+power connector, I tried a different drive and it still seems to work, so I would assume you could put older drives into the case and use the dock for backups.
Message 5 of 51
mdgm-ntgr
NETGEAR Employee Retired

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

Nice! Good to know that from initial testing 4TB drives appear to work fine.

I think I will still wait for a bare 4TB drive to be released and then see what the price of that is like.

Needless to say that pulling a drive from the GoFlex voids the warranty on the drive and as the disk is not on the official compatibility list if you run into issues NetGear will deny support. So make sure you have good backups of any important data.
Message 6 of 51
jmirabil
Aspirant

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

Ok, dare I ask----Who's going to be the first to try 6 of these in a ReadyNAS Pro Business or Ultra 6? 🙂
Please post the results if ANYONE does... Thx!
Message 7 of 51
TeknoJnky
Hero

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

I have 2 of them in an ultra 4, from about the time of the origin post, no problems thus far. I don't see any reason why it would be different for 6 of them in a u6 or pro6.

4104 GB (63%) of 6471 GB used

Ch 1 : Seagate ST4000DX000-1C5160 [3726 GB]
3721 GB allocated
Ch 2 : Seagate ST31500341AS [1397 GB]
1392 GB allocated
Ch 3 : Seagate ST31500341AS [1397 GB]
1392 GB allocated
Ch 4 : Seagate ST4000DX000-1C5160 [3726 GB]
3721 GB allocated
Message 8 of 51
bbaraniec
Luminary

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

I would love to know if in future we will be able to expand beyond 18TB without factory default.
Message 9 of 51
sphardy1
Apprentice

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

bbaraniec wrote:
I would love to know if in future we will be able to expand beyond 18TB without factory default.

Given the time it would take, a factory default is perhaps the only truly practical way to expand?
Message 10 of 51
bbaraniec
Luminary

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

I don't care about time tbh, but imagine having to copy 10+TB just to replace your drives, then restore config, all software running, all scripts etc.
No everyone can afford another equal ReadyNas just to have it as a backup. I really hope there will be solution introduce to address this issue.
It's not LVM limitation right? So where is the issue?
Message 11 of 51
sphardy1
Apprentice

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

bbaraniec wrote:

No everyone can afford another equal ReadyNas just to have it as a backup.

It's that or 2 weeks to expand. And if there happens to be a fault with a disk mid-expansion? Makes dual redundancy a must

IMO the expansion times required with 3TB+ drives now makes the whole idea of online expansion completely irrelevant
Message 12 of 51
bbaraniec
Luminary

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

I would still prefer 2 weeks approach then starting from scratch. I think everyone has put more or less time into "tuning" ReadyNas.
You are replacing only 1 drive at the time, so in worse case scenario you will be left with degraded array but still access to data.
But anyway, where is limitation right now?
Message 13 of 51
mdgm-ntgr
NETGEAR Employee Retired

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

If using single-redundancy and you remove a disk you array will be degraded. Adding a new disk puts heavy stress on all disks, so if you do this process repeatedly and one of the disks you happen to not replace or get to replacing last is failing you can have a disk failure at a bad moment (e.g. during a resync). Backups are very important. As is testing the existing disks (e.g. using "Disk Test"' boot option)
Message 14 of 51
bbaraniec
Luminary

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

Yup, you are right here. I'm backing up the important data to external drives. Once the hard drive prices goes back to normal I'm gonna try upgrading to 6x3TB. Still I would love to know, why there is a limitation right now.
Message 15 of 51
TeknoJnky
Hero

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

I believe the jedi's have mentioned the expansion and 16tb limit are due to a combination of ext4 and the expansion utilities.

With 3 & 4 tb drives being readily available, I would hope that work is actively being done to resolve issues, but I am sure its no simple fix or it would have been done already.
Message 16 of 51
cubewebsolution
Aspirant

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

Why wouldn't you just go 6 x 4TB drives... ?

I'm also curious, 6x4TB drives is 24GB, how much of that would be usable space in the ReadyNAS?
Message 17 of 51
bbaraniec
Luminary

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

First of all is the money issue 😉 I don't want to spent 2000$ for drives. Second you can't go beyond 16TB without factory default, that's why 6x3TB is still possible. 6x4TB should give you:

5x3726GB in single redundancy should give you almost 18TB. Man that's a lot of space, but I will be happy with 14 😉
@TeknoJnky correct me if I'm wrong but in this case 6x3TB is still possible with single redundancy since it's only 14TB, "6th" drive is not counted.
Message 18 of 51
mdgm-ntgr
NETGEAR Employee Retired

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

Yes 6x3TB is possible. Though with that I'd be wanting to use dual-redundancy. With 3TB drives resync times when replacing disks would be starting to get very long.

6x4TB in dual-redundancy would be below the 16TB limit as well. Though if all drive bays are full a factory default would be needed to switch to dual-redundancy.
Message 19 of 51
TeknoJnky
Hero

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

I think anyone who uses 2+tb drives in a six bay device and does not use dual redundancy is crazy, but that is just me.

as already previously mentioned, with single redundancy and very large arrays;

1) that is a crap ton of data
2) whenever a disk is swapped and/or a resync is going on, your data is vulnerable.
3) if you have 8tb+ and its not backed up, and a 2nd disk fails during a resync/rebuild/expansion, you are F'd with a capital F.

dual redundancy is the only way to go, even with 6x 2tb drives.

Anyone who uses single redundancy, *and* has no backup, gets no sympathy from me when all their stuff disappears.
Message 20 of 51
bbaraniec
Luminary

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

I hope I'm gonna have $$$ to find out how long it takes 😉 Thanks for answers.
Message 21 of 51
cubewebsolution
Aspirant

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

I'm a newbie here, and only about to buy a ReadyNAS Pro http://bit.ly/sr8Una, but not sure what you mean by "Second you can't go beyond 16TB without factory default". Why wouldn't you be using factory default?
Message 22 of 51
mdgm-ntgr
NETGEAR Employee Retired

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

If you want to expand a volume of say 12TB beyond 16TB that's not possible at this time. A factory default wiping everything is necessary to set it up.
Message 23 of 51
TeknoJnky
Hero

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

for example, if you have 6x 2tb drives in single redundancy this would get you about 9.2 tb

if you wanted to upgrade to 6x 4tb single redundancy (replace disk, wait for resync, repeat), then this would total about 18.6 tb

unfortunately, you would have to backup existing data and factory with all six 4tb drives due to being greater than 16tb.
Message 24 of 51
cubewebsolution
Aspirant

Re: Seagate ST4000DX000-1C5160 [3726 GB] 4TB

But if I'm setting up from scratch, then 6 x 4tb would work?
Message 25 of 51
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