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4 TB HDD showing only 2.2 TB (SOLVED)

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I'm guessing I must be doing something wrong, or that HDD is fried.

I swapped out my old 4TB parity drive for an 8TB drive and I was going to use the old parity to replace another 2TB.

The new 8TB parity synced up and and is working fine, but when I installed the old 4TB drive it is showing only 2.2TB.

Any ideas?

Are they both on the same controller?  Some controllers (old / ancient) only supported a max of 2.2TB

  • Community Expert

A disk showing only 2.2TB available is almost certainly a limitation of the disk controller it is attached to and is not atypical for older model SATA controllers.  You mention your 8TB drive is working fine - is that attached to a different controller?

  • Author

Yep... I was doing some more research, and tested my 2nd 8TB drive... Same issue.

It's the RAID controller. 

Now I need to find a replacement... BLAH!

Any advice? Sugestions? My server is an old Dell Poweredge T110 that I got for free.

@itimpi Yeah the parity drive is on SATA directly to the MOBO.

18 minutes ago, deuxcolors said:

Yep... I was doing some more research, and tested my 2nd 8TB drive... Same issue.

It's the RAID controller. 

Now I need to find a replacement... BLAH!

Any advice? Sugestions? My server is an old Dell Poweredge T110 that I got for free.

@itimpi Yeah the parity drive is on SATA directly to the MOBO.

For instace you can look for a LSI 9207-8i, they are pretty cheap in ebay. And if not included, or you don't already have them,  get a pair of SFF-8087 to 4xSATA cabels on Ebay too, they are quite expensive if you buy them at your local store.

 

  • Author

I found a PERC H200 (refurb) through Amazon for 30€
I only need one SFF-8087 to 4xSATA for 9€
And I need SATA power splitter.

Will that work?

And once I swap the cards will the last 2TB "pop up" ?

Edited by deuxcolors

3 minutes ago, deuxcolors said:

Would this work?
MZHOU PCIe SATA Card 6 Ports

That card has a Marvell controller.  I would avoid it as drives attached to Marvell controllers tend to disappear in later versions of unRAID/Linux, especially if virtualization is enabled.  Even if you don't run VMs, Marvell chipsets should be avoided when possible.  They have been problematic lately with Linux.

 

The H200 is based on an LSI chipset and would be preferred as there are no issues with LSI-based cards.

  • Community Expert
7 minutes ago, deuxcolors said:

Would this work?

Avoid that, Marvell + port multiplier not good.

  • Author

Thank you all.

Going with the refurb LSI card.
Should I bother flashing it to HBA?

  • deuxcolors changed the title to 4 TB HDD showing only 2.2 TB (SOLVED)

If the Dell PERC 200 is in RAID mode you should definitely cross flash it to IT mode with the latest Broadcom/LSI 20.00.07.00 firmware

 

I have a Dell H310 which is very similar to the H200 (just a different port orientation).  They work very well in unRAID in IT mode.

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