Raid 5 with different cache memory (pr4100)


I had a problem with my PR4100, I have 2 disks that have failed and I would like to install a new RAID 5.
I have 2 WD60EFRX disks (64mo cache 5400rpm).

The new references sold by WD are :
WD60EFZX (128mo cache 5640rpm)
WD60EFPX (256mo cache 5640rpm or 5400rpm info not available on WD)
I would like to know if there is a problem of compatibility with the old disks to make RAID 5.

Thanks in advance for your advice and help.

Hi @Lionhart1,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting: