04-10-2012 09:43 AM
We have six Dell Optiplex 990 Desktop models with two Momentus Thin XT250LT007 drives configured as RAID 1, OS is WinXP x64. The systems run fine for a couple of days and then they start to slow down, when starting an application the drive lights come on and stay on until the application loads, which could take an unusual long period of time. It is as if the application was compressed and now it needs to uncompress to open/load. This can happen with any app. I have updated every driver and the BIOS, made sure the drives are aligned, updated Intel RST, but nothing helps. The only solution is to shut the system down, a reboot does not help.
We also have Dell Optiplex 990 Mini Tower models with Western Digital drives, these systems use the same image and do not have the slow down problem. I have worked with Dell, but we can't find a solution. This has gone on for a couple of months, the machines are virus free.
I was hoping there was a firmware upgrade for the drives that may address the problem, but not yet.
The only difference between the Desktop and Mini Tower models is the hard drives. Any help is appreciated.
04-10-2012 12:24 PM
I apologize for the trouble that you are having with those drives. I am researching your issue, and looking into if there are any firmware updates available for those drives. Stay tunes and I will get back to you as soon as possible. Something that would be helpful is if you would mind private messaging me your serial numbers to those drives.
Let me know if you have any other questions.
04-11-2012 05:00 AM
We appear to be having the same issue with our Optiplex 790's that are configured with Seagate ST250LT0007-9ZV14C drives. The PCs typically run fine for 3 to 6 days and then the Disk Response Time suddenly becomes extremely slow. As TF NOAA described, rebooting does not help. We need to shutdown the PC to resolve the issue. We're running Windows 7 64-bit on our systems instead of windows XP and we're not using RAID. We also have several hundred identically configured Optiplex 790's in service with non-Seagate drives that are not experiencing this issue. Any help would be greatly appreciated.
04-11-2012 05:12 AM
Guys I would check with Dell, they may have a solution as it's their machine, they tend to load up their own stocking filler stuff and this sometimes plays havoc with things.
04-13-2012 06:56 AM
We're not using a Dell factory image on our Optiplex 790s, but I do have a case open with Dell on this. This week we also saw this same behavior with a Latitude E6420 that has a Seagate ST320LT007-9ZV142 drive. I should have also mentioned that in addition to powering off the system, we are also able to clear the drive performance issue by putting the PC to Sleep and then waking it back up again.
This same drive behavior appears to be occurring with at least 3 different model PCs and 2 different operating systems. Also, since we're not seeing this issue with identically imaged systems with non-Seagate drives, it's starting to look like this could be a firmware issue with the drive.
04-13-2012 03:17 PM - edited 04-13-2012 03:25 PM
Could you do some temperature monitoring, I notice the Dell is small form and not vented much, so as they slow down get a temperature off the HDD, HD Sentinal will do this for you and the trial is free, your drive shouldn't go above 60 degrees btw, not saying this is it because it probably isn't but it rules out the silly stuff first.
Are the other make drives 7200 rpm drives as well or are they 5400/5900 rpm
Have you tried re-installing Windows yet, I've just read the review page and most are satisfied, but those who look like they know a PC aren't, here's one reply
04-16-2012 07:44 AM
Thanks for your response. Our Optiplex 790s are Desktop Form Factor units, so they should have adequate ventilation. Regardless, I just checked the drive temperature on a unit that is having the problem and the temperature is only 26 degrees Celsius.
All of the other non-Seagate drives that we have installed are comparable 7200 RPM units. We've tried reinstalling Windows on the Seagate units and the problem returns. However, where we've replaced a Seagate drive with a non-Seagate device, we haven't seen the issue again.
04-16-2012 09:11 AM
26 is ok so that can be ruled out,
Put HD Sentinal on them so you can see if there is a sector/health issue at all.
05-22-2012 12:47 PM
Was a solution found to this? We're having the same issue with all the Momentum Thin drives we've deployed this year - ST320LT014-9YK142. After several days of uptime, they slow to an absolute crawl.
We're deploying them in Dell Latitude E6420s.
05-22-2012 03:50 PM
I replied to your other post before seeing this, in light of that I would if possible format and re-load the O/S to make sure it's not Dell related, and believe me Dell do like to remain in control of everything they sell, also as it's Dell it's likely to have Dell FW on the HD rather than a Seagate one, again this can be an issue, personally I've only re-worked one Dell PC before and I thought to myself......this is set up to make the support phones ring to extract more money out of the customer, they even re-flash the optical drives to their specs.
06-07-2012 08:43 AM
I am having the exact same issue with 3 optiplex 990 clients purchased from Dell, all using Seagate ST250LT0007-9ZV14C drives in a RAID 1 array. I reformatted all of the systems immediately after receiving the computers, installed Windows 7 x64, DSS, dell drivers and applications. I can verify that reformatting the HDD will probably not fix this issue. All 3 of the clients are doing the exact same thing, work great for about a week, then HDD transactions slow to a virtual crawl until the system is powered down. I've read other cases where the customer has forced Dell to replace all of the drives with a different model alltogether, and I'm about to see if I can get them to do the same thing for us. Good luck, and I hope this helps.