10-20-2008 12:38 PM
While copying (way faster) internally, or when (re)building a raid, there's no failures, even if it runs for hours.
Situations where I have seen a freeze:
- low bandwidth web download.
- MythTV (every 15-20 minutes of playback).
Situations that worked:
- Copying 500+ GB between two machines (both with these 1.5TB drives) across a Gigabit network - no freeze.
10-20-2008 01:56 PM
Were either of those controllers non-RAID?
(By the way, RAID = Redundant Array of Independent Drives.)
10-20-2008 02:00 PM - edited 10-20-2008 02:45 PM
I've used MaxBlast or similar tool earlier with my Maxline III drives in this system. Also dload.exe did work fine on this system.
So is 1.5Tb worth of data good reason for using RAID? (or in my case 5TiB) Ofcourse I need back-up strategy, and this would be IT! I would like to mirror my valuable data to these drives
10-20-2008 02:13 PM - edited 10-20-2008 02:19 PM
Non RAID controller.
Tested with 2 x 1.5TB drives on built-in SATA controller (AMD 780G chipset) - freeze problem observed.
Tested with 1 x 1.5TB drive on built-in SATA controller (AMD 780G chipset) - freeze problem observed.
Tested with 1 x 1.5TB drive on PCI-E Silicon Image SATA controller (installed only for this test) - freeze problem observed.
Each time I checked the dmesg log and confirmed it was due to the hard drive sub-system reporting a timeout error executing a cache-flush command.
10-20-2008 11:55 PM
non-raid controller - 00:1f.2 IDE interface: Intel Corporation 82801GB/GR/GH (ICH7 Family) SATA IDE Controller (rev 01)
When speaking of raid here, I'm speaking of linux software raid, but the problem isn't caused by raid, but it's effects are even more painful, as instead of a 20-30s freeze, you get a freeze plus rebuild-time.
10-21-2008 01:03 PM - edited 10-21-2008 01:59 PM
Other reports of this symptom on different operating systems:
"My Seagate model S31500341AS firmware SD17 will freeze up for about a minute at apparently random times during media playback over windows file sharing. I've tried two different computers both with Vista."
"Unusable for media or any other near real time use. Every 5-10 minutes, the drives will stop responding for a period of time (10-30 seconds). Data is not lost, but it's useless for playing back media files."
"I experience hanging/lagging/freezing every few minutes that lasts for 30 seconds or so. I installed one in my Mac Pro and tested it thoroughly with Drive Genius 2... no problems. If you try to stream audio or video from it though, it locks up as described above."
Log entry from the Mac:
"Sep 28 23:50:34 COMPUTER_NAME kernel: jnl: disk3s2: flushing fs disk buffer returned 0x5"
10-21-2008 06:07 PM
FYI: "DRI (data robotics inc.) has been advised by Seagate that they are working on a firmware update for the 1.5TB drives that fixes some bugs. Hopefully this will fix the drive failings. No idea yet about how drive firmware will be updated."