Hitachi 7K3000 HDS723020BLA642 - NV+ & Ultra 6 Issues

Hitachi had the model number on the drive label, but the P/N was used on the outer anti-static bag but the model number was not. So that led to confusion as some sites listed the drive by the P/N and some sites listed them by the model number.

I would first make sure my backup was current and complete. One of the most critical times for the NAS is on the resync, for if another drive is weak and fails at this point, you then have the dreaded double drive failure which very often results in data loss. Then hot pull the drive in question, attach it to a Windows PC and use drive management to remove all partitions from the drive. Then hot re-insert the drive. The system should verify the drive and then start the resysnc.

Thanks! I'll give that a try.

P/N is fine BUT I just noticed these are okay for my NV+ but not on the HCL for the Ultra 6.

The "640" by Hitachi is but the "642" is not. Any chance this will work on the Ultra 6?

"Then hot pull the drive in question, attach it to a Windows PC and use drive management to remove all partitions from the drive. Then hot re-insert the drive. The system should verify the drive and then start the resysnc."

I did this. I Frontview/Health tells me the disk is "dead". The log says, "Data volume will be rebuilt with disk 2."

The display on the Ultra 6 under the IP address says, "C: Unprotected".

Not sure what that means. Is there something I missed?

Note: When I inserted the disk the Ultra said, "Testing Disk", "C Unprotected" and finally "Disk Passed" then back to the "C: Unprotected" which seems to be permanent.

For some reason, it seems to accept the disk, but will not resync which is why you are getting the C: Unprotected message.

What is the status of your backup?

Hi papa and thanks.

Backup is current.

I've looked at a few other threads and it seems my best option is to do a factory reset and see if the new drive works. Then restore my backed up data.

That is unless you can give me another option. :)

Actually that seems to be my easiest option. Somehow the Ultra is confused.

Let me ask....what is the benefit (or necessity) of doing a hot swap vs a cold swap of new drives?

When replacing a drive, it is normally better to do a hot swap. During the swap, the unit is supposed to recognize, initiallize and resync the new drive. However, years ago when I was a newby, with my NV+, I lost a drive within a month. I shut it down, removed the old drive, inserted the new one, and rebooted and all went well (both of those drives then ran for the next 3 years, over 25,000 hours before being replace for larger ones).

I would do one thing a little different. I agree that your best and most efficient step is a factory default, but I would actually do two. The first one would be with only the suspect drive in place. With a solo drive there is no hours long synchronization to take place, so if the drive is in fact good and is accepted, it should only take about 15 minutes or so to initialize and establish a one drive volume. Once the volume has been established, then you know the drive is OK. Then shut it down, insert the other two and do a factory default on reboot.

Do you need the steps for a factory default? Here is the boot menu page for all ReadyNAS units, just scroll down to the right one.

papa, thanks for the time saving tip about doing 2 resets and the link to the menu.

I've had ReadyNAS' for some time and I'm really satisfied with the equipment. I have 2 NV+s that were past warranty and Netgear replaced power supplies at no charge. Great customer service. It's just when a problem arises I'm am out of the loop since I don't read this forum until then. :roll:

I'll give your suggestions a try and see what happens. Look like my weekend is shot! :D

As a follow up I tried a factory default on both my 2 good disks and with each of the 2 Hitachi disks I bought. Both Hitachi disks are bad.

What are the odds of getting 2 bad disks out of the 3 I ordered?

Are all NAS devices as sensitive as the ReadyNAS or are the disk manufacturers that bad?

It could be poor handling by a courier, distributor along the chain somewhere. There are a variety of causes.

Have you connected the disks up to an internal SATA port in your PC and checked them?: http://www.readynas.com/kb/faq/hardware/how_can_i_verify_that_my_disk_is_bad

Hi mdgm, I did hook them up to an old XP tower I have and they worked just fine. I just feel (no data, just a hunch) that the ReadyNAS units are a tad bit more sensitive. I have no problem with that but it's very frustrating. I've had to replace disks on my ReadyNAS units in the past but in the last two years or so it seems that the QC of the drives has declined. I requested a refund from Newegg on the 2 bad disks. When the dust settles I believe I'll give the WD Reds a try. Right now everyone seems to be out of stock.