biznok
1 Copper

Replacing 750TB to 3TB HDD on my PowerEdge 2900

Hi.

I have one PowerEdge 2900 server with eight 750GB SATAu, but this space has almost exhausted.

So I want to upgrade these 750GB SATA*8 drives to 3TB*8 drives, but technical specification of PowerEdge 2900 says

it only supports up to 750GB SATA drive.

Someone know that can I change those 750GB SATA drives in SATAu tray to 3TB SATA drives?

Thank you in advance.

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23 Replies
Moderator
Moderator

Re: Replacing 750TB to 3TB HDD on my PowerEdge 2900

This server and controller will not support 3TB drives.  The largest drives it will support are 2TB.  

Geoff P
Dell | Social Outreach Services - Enterprise


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theflash1932
6 Indium

Re: Replacing 750TB to 3TB HDD on my PowerEdge 2900

750GB is only listed as the max because it was the max at the time of the writing of those documents, as larger drives either weren't available yet or weren't tested yet.

As Geoff said, as is, the 2900 will only support 2TB drives - this is a limitation of the PERC 5/6 RAID controller, not the system itself.  The only Dell RAID controller that supports 3TB drives is the H700, which some people have put into the 9G servers (2900/2950) and have reported that it seems to work, although this setup is not supported by Dell.

 

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Dev Mgr
6 Gallium

Re: Replacing 750TB to 3TB HDD on my PowerEdge 2900

Another note: Your current setup probably has 2 virtual disks. This could be a raid 1 with 2 of the 750's and the rest in a 2nd virtual disk, or it could be a single raid set with 2 virtual disks.

The 2900 doesn't support UEFI, which means that it's bootdisk can only use 2TB (2048GB). Booting to a virtual disk larger than 2TB (even with the unsupported PERC H700) will mean you can only use the first 2TB. A data disk can exceed 2TB though. So, if you were to put a PERC H700 in the server and use an 8x3TB disk raid 5, make sure to make a boot virtual disk first that doesn't use the whole size (e.g. 100GB), and then a 2nd virtual disk that uses the rest.

To use a virtual disk over 2TB as a datadisk, you'll need Windows 2003 SP1 or later, VMware ESXi 5, or linux with a 2.6 kernel.

Member since 2003

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rjemmett
1 Nickel

Re: Replacing 750TB to 3TB HDD on my PowerEdge 2900

So, for clarity here...

 

What if I boot off a SATA Port and use the PERC 5/i for storage only.  Will the PERC 5/i see the 3TB drives as 2TB?

Here's what I'd like to do and you guys and gals can tell me if I've been drinking my bath water...

Install Windows Server 2008 to a 256GB Solid State Drive SATA port 0 as the Boot Drive

Install 8 - 3TB (or larger) drives and RAID 5 them off the PERC 5/i controller.

Will the PERC 5/i see the 3TB (or larger) drives as they are or will it show the drives as 2TB?  Essentially, I'd like to get as much storage space as I can out of this.

 

what says you all? 

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Moderator
Moderator

Re: Replacing 750TB to 3TB HDD on my PowerEdge 2900

Hell rjemmett

What if I boot off a SATA Port and use the PERC 5/i for storage only.  Will the PERC 5/i see the 3TB drives as 2TB?

I can't say for sure what exactly will happen with unsupported equipment. It may not boot, it may not detect the drive, or it may only detect 2TB of the drive.

Install 8 - 3TB (or larger) drives and RAID 5 them off the PERC 5/i controller.

This goes back to the above post. Drives larger than 2TB are not supported on the PERC 5. We don't know what exactly will happen with them installed, but it will definitely not use the full 3TB if the drives are even detected.

Will the PERC 5/i see the 3TB (or larger) drives as they are or will it show the drives as 2TB?  Essentially, I'd like to get as much storage space as I can out of this.

My suggestion is to not attach drives larger than 2TB to the PERC 5. They are not supported and may not function at all. You may not even be able to use 2TB of the 3TB HDDs.

You will need an operating system that supports guid partition tables(GPT). You can't boot to GPT without a UEFI compatible system board, so you will need to create a normal NTFS partition for your boot drive, like the SSD option you mentioned above(Which is also unsupported, SSDs are not supported on 9th gen). You can then create a GPT data partition.

Learn more about GPT here: http://msdn.microsoft.com/en-us/library/windows/hardware/gg463525.aspx

Thanks

Daniel Mysinger
Dell EMC, Enterprise Engineer

Get support on Twitter @DellCaresPRO

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theflash1932
6 Indium

Re: Replacing 750TB to 3TB HDD on my PowerEdge 2900

As Daniel said, several things can happen if you hook up the drives to a PERC 5 ... if I remember correctly, I have seen people say the PERC sees only 2TB or that the drives are not detected at all.  This can depend on several factors  ... are you using Dell-branded drives, certified for use on Dell PERC controllers?  If not, then I would guess the chance of being detected and being usable drop off significantly.  Worst case scenario ... they are detected as 2TB and you can configure them into your RAID array, THEN have reliability/integrity problems.

Also, if I remember correctly, you won't be able to boot off the onboard SATA ports while using the PERC (there for optical and tape drives).

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rjemmett
1 Nickel

Re: Replacing 750TB to 3TB HDD on my PowerEdge 2900

Thanks folk!  I played around with this and installed 4 -3TB drives into the PERC/5i and updated all the firmware, drivers etc.  The controller will only recognize the drives as 2TB Drives.  My next step is to install a PERC H700 to see if I can get the full 3TB to be recognized.

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theflash1932
6 Indium

Re: Replacing 750TB to 3TB HDD on my PowerEdge 2900

The PERC H700 and above CAN use 2TB drives (with the latest firmware), but the PERC 5 and 6 CANNOT - it is just NOT possible for a PERC 5/6 to use larger than 2TB drives.  The H700 is not officially supported in the 2900, but I have seen reports that it works fine.

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OCMaster
1 Copper

Re: Replacing 750TB to 3TB HDD on my PowerEdge 2900

Hi Rjemmett,

The 3TB disks you used in the PERC/5i, were they Dell drives, or 3rd party drives ?

I'm asking because i'm about to order disks for my PowerEdge 2900 with a PERC/5i controller and were planning on ordering some Seagate 2TB 7200rpm SATA disks, but i'm worried that it won't work with non-Dell drives.. 

Hope to head from you soon, because i'm a bit worried about spending alot of $ on something that does not work..

I'm planning on adding an additional raid controller to host 2x SSD drives to run in an raid1 config to host the operating system. Does anyone know if a secondary raid controller can be used in the 2900 together with the PERC/5i, or if that a bad idea ??

Best regards from Denmark,

OCMaster

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