EMC VNX series storage to replace a failed hard checks in
VNX1 Generation (VNX5300, VNX5500, VNX5700, VNX7500 VNX2 and substituting (VNX5400,5600,5800 and VNX7600,8000) are different
VNX2 compared VNX1 there are some differences in hardware and software, such as hot-spare disk mechanism both have very different.
In VNX1, the hot spare is temporary, that is, when a new disk has been replaced up, hot spare disk will copy the data back to the new (Equalization), Raid Group original configuration does not change.
VNX2 introduces the concept of permanent hot spare, i.e. omitted Equalization step, hot spare permanently involved in Raid Group structure, the new disk will be put in a state Unbound.
Replacing the checks failed disk vnx1
Steps:
1. Before replacing the failed disk again confirm the operating state of the bad disk.
2. Before replacing a failed disk, confirming the status of the RAID group and LUN.
You must wait for rebuilding to complete before continuing.
3. If there have been a failed disk and hot spare is being rebuilt (rebuild) RAID process, you can replace the failed disk during reconstruction.
If reconstruction is completed, FLARE will reconstructed data copied back from the hot spare (equalize) the new disc replacement. It is strongly recommended after the completion of the reconstruction process such as replacing a failed disk.
4. If the hot spare rebuilding a RAID group, RAID group in case there are some errors a log disk, do not replace the second block before the reconstruction of the disc is completed.
Alternatively this case there will be a second double fault block disc problems.
5. If the hard disk has not been completely damaged, must be replaced prior to do a background check (Background Verify) to LUN where all of this disc.
vnx2 permanent hot spare concept hot spare Raid Group permanently involved in the structure, will be in the new disc changer unbound state