firmware cc42 date 12047 dom 7/2011bare drive pulled from usb3 external @ http://www.amazon.com/Seagate-FreeAgent ... 914&sr=8-1single drive, boot menu factory defaulted, all frontview defaults.ultra 4: 4.2.20-t4, no JF, single nic217 MB (0%) of 3696 GB usedCh 1 : Seagate ST4000DX000-1C5160 [3726 GB] 3721 GB allocateddrag/drop 15g from ssd via cifs gbit to default backup sharepeaks of ~80-85 mibswindows dialog reported speed ~45 mibspro business (v1): 4.2.17, no JF, single nic217 MB (0%) of 3696 GB usedCh 1 : Seagate ST4000DX000-1C5160 [3726 GB] 3721 GB allocateddrag/drop 15g from ssd via cifs gbit to default backup sharepeaks of ~115mibswindows dialog reported speed ~79 mibsreading same 15g file back to ssd showed 110 on windows copy dialog, constant 115-118 on netmeterother notes;only 1 drive at this time, so unable to test raid/expansiondrive seems to be pretty quiet, can't really hear it over the device fansspent about 30 minutes on each device, so no extended testing, just setup and a few drag/drop transfersCan't wait for tax return time or saving up for 5 more drives, I'm looking forward to 6x 4tb in dual redundancy.Model: ST4000DX000-1C5160Serial: Z1[removed]Firmware: CC42SMART AttributeSpin Up Time 0Start Stop Count 10Reallocated Sector Count 0Power On Hours 1Spin Retry Count 0Power Cycle Count 10Reported Uncorrect 0High Fly Writes 0Airflow Temperature Cel 31G-Sense Error Rate 0Power-Off Retract Count 8Load Cycle Count 16Temperature Celsius 31Current Pending Sector 0Offline Uncorrectable 0UDMA CRC Error Count 0Head Flying Hours 187685775867905ATA Error Count 0

added second 4tb drive to ultra 4Sun 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.

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.

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

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

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.

Seagate ST4000DX000-1C5160 [3726 GB] 4TB

50 Replies

Replies have been turned off for this discussion

bbaraniec
Luminary
Dec 30, 2011
I hope I'm gonna have $$$ to find out how long it takes ;) Thanks for answers.
TeknoJnky
Hero
Dec 30, 2011
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.
mdgm-ntgr
NETGEAR Employee Retired
Dec 30, 2011
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.
bbaraniec
Luminary
Dec 30, 2011
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.
cubewebsolution
Aspirant
Dec 30, 2011
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?
TeknoJnky
Hero
Dec 30, 2011
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.
bbaraniec
Luminary
Dec 30, 2011
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.
mdgm-ntgr
NETGEAR Employee Retired
Dec 29, 2011
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)
bbaraniec
Luminary
Dec 29, 2011
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?
sphardy1
Apprentice
Dec 29, 2011
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

Forum Discussion

Seagate ST4000DX000-1C5160 [3726 GB] 4TB

50 Replies

Related Content

ReadyNAS RN104 fresh setup to replace Seagate NAS

Seagate IronWolf compatibility (ST4000VN006 vs ST4000VN008)

Disco Seagate compatible con RN102

RN104 not recognizing Seagate Exos 7E8 8TB

SEAGATE/WD Surveillance HDDs

NETGEAR Academy

ProSupport for Business