Pegasus 2 R4 now showing up after change of hard drive

  • Last Post 4 days ago
Jirka Silander posted this 2 weeks ago

TL;DR We changed a hard drive and now Pegasus isn't showing up or shows up read only. 

So we are running a Pegasus 2 R4 in our edit, and it seems someone opened one of the hard drives (Disk 2) while everything was running. after closing the panel, our pegasus said the hard drive didn't work. Since were running on Raid5 we just bought exactly the same drive and let Pegasus do it's magic. 

After rebuilding the drive, Pegasus however does not show up. After about 15 minutes our Mac tells us that it could not repair the drive (We never asked it to) and the drive shows up read only. We moved all the data to another drive

So right now we do not know if the data is really saved (Theres over 5 terabytes of data) and we can just format and start from the begining. Or is it smarter to try and get our Pegasus working again.   

1. Is there a way to get our pegasus to read and write without formating

2. is there a way to check if data was lost with lost hard drive?

3. Can I run a check if there is something else wrong with our other hard drives?


EDIT: Trying to save service report crashes the App. The App is up to date. 

Ranjith kumar posted this 4 days ago

Hi Jirka,

If you have backup of data from Pegasus and you get's read only mode in the Pegasus drive, then 

it could be file system issue. So you can go with format of drive or deleting and creating new array

to work with Pegasus drive again.

For Promise utility, check with uninstall and reinstall the Promise utility as per your Mac OS version, download 

the Promise utility from our website.

Please reach us if you need any assistance through


Promise Team