Is your new disk showing as Ready or Foreign in the Physical Disks screen?  If Foreign, you MUST clear it before you can do anything with the disk.  You clear it by going to OMSA, PERC, Information/Configuration (link at top of page), and Foreign/Clear from the dropdown menu of Available Tasks for the controller). Also Seagate lists the following: ST9146852SS - 146.8GBST9146853SS - 146GB I realize the 136.12GB you posted is likely what OMSA is showing as its capacity, but there may be a reason Seagate specifically listed the '.8' on the older drives.  If, for example, the actual size is 136.124 vs 136.121, both would be rounded to 136.12, but the 3MB difference in size would be enough to keep the smaller disk from being a suitable replacement. If your disk is showing Ready, then I'd have to think it is a size problem ... getting another '2' should work fine ... or if you are so inclined, capable, and willing to risk voiding the warranty, you might be able to use a disk editor to change the size it advertises to the controller.
i have a R610 machine with H700 controller. i have 3 disks in it configured as raid5. all 3 disks are SAS 136.12 GB product id ST9146852SS (as shown in OMSA) i am now trying to add a hotspare. i inserted another SAS 136.12 GB disk (product id ST9146853SS). i go in OMSA to virtual disks->Assign dedicated hot spare. for some reason i am getting an error "Storage Management only displays those disks that can be used as a hot spare. There are currently no disks that are available, large enough, or of the correct type to be used as a hot spare for this virtual disk." what am i missing here? it should be pretty straight forward
How to add hotspare?