Newbie question while we're on the subject of larger drives
Are all 1U & 3U servers compatible with larger drives? For example would a used 3Uin the marketplace with 14 x 2TB be able to accept 4TB, or is there a limit for some servers?
Yes, all 1U and 3U Servers use the same drives regardless of Server age. The drives circulating in the used marketplace tend to be 750GB, 1TB, 2TB, and on occasion 3TB. The newest drive available at K is the 4TB (but K also has a few 2TB drives, probably leftover from a high volume purchase, but not sure). Any size drive made for a 1U or 3U will work, but keep in mind the following info:
1. If it's a 750 or 1TB being discussed, be sure the drive was actually made for the 1U/3U (there are other Server's (i.e. 5U, CinemaOne, etc) that use same size drives, but different case that will not work in a 1U/3U chassis).
2. If buying used, be sure the used drives have been "reinitialized" by K before installing in your Server, or they will not work (when drives are first placed in a Server the file system attaches those drives to THAT Server and will not work in a different Server until reinitialized (basically put back into a virgin status). K charges a fee for this Service. The only exception to having to reinitialize used drives is when you place ALL of the used drive from one Server into another EMPTY Server. In that situation, the drives do not need to be reinitialized.
3. In a 1U, the FIRST larger drive you place in the 1U will not result in additional storage because that drives capacity will be allocated to KRAID. In a 3U, this happens to the FIRST TWO larger drives you install (allocated to KRAID and Hot Spare). There are factors that can affect the net storage result, but this is normally determined by how many drives are already in the Server receiving the larger drives (i.e. if the Server is already full of drives, then there is no gain in capacity when you swap drives, as noted above. If the drives are being added to a Server with empty slots, then you do at least "free up" the capacity of the drive that was the Hot Spare, and the previous KRAID allocation. Hope that's clear.
Jim