Upgrade pegasus2 R4

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Ronald Langerhorst posted this 26 June 2020

Hi

I have a pegasus2 R4 with 4 toschiba DT01ACA3 HDD's 3 TB and i want to upgrade to 4 toschiba MG05ACA800 each 8Tb

Is this possible and how must I do that?

regards Ronald

 

MGm05ACA series MG05ACA800E series MG05ACA800EG05ACA series MG05ACA800E

   

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Ranjith kumar posted this 28 June 2020

Hi Ronald,

Yes,you can upgrade to 8TB of drives. You have to remove all exsting 4TB of drives after shutdown of the unit

and then insert 8TB of drives, power on of the unit to create new array.

Kindly use below link to download the compatibility list for Pegasus2:
https://www.promise.com/DownloadFile.aspx?DownloadFileUID=6426

Please reach us through support.promise.com if you need assistance.

Thank you,

Regards,

Promise Team

Ronald Langerhorst posted this 28 June 2020

Hi

i want to extend the current capacity without losing the existing data. When I replace all the existing hdd's at once the data is gone. Is it possible to replace the hdd's one by one? And in doing so expanding the capacity from the array 4*3tb to 4*8tb?

Larry Yaeger posted this 29 June 2020

I've not done this, instead always copying the data elsewhere, swapping out the drives, recreating the volume, and copying the data back. But if the extra disk space isn't available to do that, I've read that what you are thinking works, though there are some essential extra steps at the end, because the larger disks are initially all seen as smaller, original-sized disks by the firmware. Here's one account of this process working, including those extra steps:

https://eclecticlight.co/2016/02/11/keeping-your-promise-upgrading-a-promise-pegasus-r4-raid/

Lucas Barros posted this 3 weeks ago

Hello, I want update the drives on my R4. I got 8Tb Seagate EXOS. They are on on the compatibilty list. Does that mean that they will NOT work for sure or just that they were not tested?

 

Thanks for any inputs!

R P posted this 3 weeks ago

Hi Lucas,

Hello, I want update the drives on my R4. I got 8Tb Seagate EXOS. They are on on the compatibilty list. Does that mean that they will NOT work for sure or just that they were not tested?

I assume you mean that the drive is *not* on the compatibility list.

What this means is that they have not been tested. Wil they work? Probably, SATA is a very good spec and compatibility issues are very uncommon.

The thing I'd be concerned with is using drives considerable latger than the largest tested drives. There are potential issues here.

Lucas Barros posted this 3 weeks ago

Hello, 

YES. I meant NOT on the list. 

 But 8Tb are on the list. Maybe only for R6 and R8?

Well, I'll try anyways, hope it works. 
Will post results here. 

Thanks a lot for the support.

R P posted this 3 weeks ago

Hi Larry,

Here's one account of this process working, including those extra steps:

https://eclecticlight.co/2016/02/11/keeping-your-promise-upgrading-a-promise-pegasus-r4-raid/

If you read this to the end, it did not work. There is a process that works, but it's a bit more complicated.

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