Sector size problem with seagate 3to st3000nm0023

[Jerome001]

Hello, A bit of a novice in the field, I have just acquired a fujitsu dx s2 (it would be netapp behind) with ST3000NM0023 disks. When I try to format, I get this error message.

Do you have an idea of the problem?
I found the order on the net but I can't see if the cdb is correct and I can't find any info on it.

 

[Arwen]

The problem is that most consumer disks need 512 or 4096 byte sector sizes.

However, some SAN disk enclosures used a sector size of 520. That extra 8 bytes is an additional checksum available to the SAN controller. Similar to ZFS checksums, though not as complete.

There are ways to format a 520 byte sector disk to 512, (or even possibly 4096, depending on the disk). I don't have that handy, as the last time I did that, it was using Solaris and "format -e". I am sure that at least Linux will have a way to perform the task.

Search around for "changing sector size 520". I found this, though I don't know if it will work for you:

How to reformat 520 byte drives to 512 bytes (usually)

So a lot of cool hardware uses 520 byte sectors instead of 512 byte sectors (or 4* sector size in the case of SSDs). There is a lot of misinformation out there. Prettymuch anything since 2012 that supports 520 byte sectors will support 512 byte sectors if you know the right magic commands...

forum.level1techs.com

Oh, one last comment, all data will be lost in converting from 520 byte sector size to 512. But, you probably already guessed that.

 

[Jerome001]

Thanks, but I tried those commands and still failed.

 

[Arwen]

Sorry, I don't have any further information.

 

[Jerome001]

According to the errors I receive during my tests, it would be a problem with reading and writing disks. Do you have any leads? Because I'm a bit stuck here... My card is a SAS9200-8e which already works with a DS4243 netapp. By plugging the Fujitsu DX S2 into the second port of the card, you can clearly see the discs but indeed, it looks like it doesn't know how to read them.

 

[HoneyBadger]

Try sg_format --format --size=512 --fmtpinfo=0 /dev/da25 against it and see.

 

[Jerome001]

I also tried this command. Here is the result.

 

[HoneyBadger]

How about adding the --six parameter as in

sg_format --format --size=512 --fmtpinfo=0 --six /dev/daXX

Try using --six without --fmtpinfo=0 as well.

Also, between commands (once you're sure there's nothing outstanding on the disk) unrack it/do a hotswap to hard cut the power. That's mandatory after a successful sector size change, but might also be necessary after a failed command. (Trying to get disks to go from 520 to 512 is a bit of a voodoo ritual.)

Is your 9200-8e flashed with full IT mode firmware? IR can sometimes fail to pass the necessary SCSI commands even to a disk that's attached as JBOD/passthrough.[/icode]

 

[Jerome001]

Thank you, I did not know this trick to unplug ^^

Unfortunately it was also an error message (with --six and --fmtpinfo, with one or the other only)

And when I unplug and replug, another message when I retry the start.

The card is well flashed in IT. I already use it for a netapp ds4243 and my commands have been without problem. Here I added this DX440 S2 on this board.

 

[Jerome001]

Unfortunately after several searches, I thought I had found a solution but this one does not work yet.

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Fork of setblocksize. Contribute to ahouston/setblocksize development by creating an account on GitHub.

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I tried doing a ./setblocksize -b512 -t1200 /dev/sg2 but also got an error about it and can't find any information about it. If anyone has a lead...