To further clarify, all drives have soft media errors.  Usually before they leave EMC facilities (or whoever they have manufacturing them for them) drives are run through a series of tests that check for and re-map soft media errors.  This is normal.  Where you can end up getting to an out of normal state is when you might receive 25-100+ of these on a single drive in a close time proximity.  In that case, I would usually suggest that you work with EMC to copy out the disk to Hot Spare and replace it.  Doing a preemptive copy to hot spare is actually better than a fail to hot spare and typically takes less time because it does not need to do a full rebuild.  Hope that helps.  For future reference, not all soft media errors reported by Flare are simply bad sector related (the ones you are seeing are).  The codes to watch for are 801, 901, 803, and 20 (sometimes).  These typically indicate that there is a larger issue and/or that the predictive failure algorithms have found issues.  For now, what you are seeing is probably nothing, just watch the error counts per drive for 6A0/820 errors.
Hi Experts,     Can anyone tell me what is 6a0 messages ? Received alert navisphrer Event, Number 820,  Support team  says, this is 6a0 Disk soft media error [Recovered error (on-drive ECC)]  can ignore.???  I am looking  what is 6a0 type error.   Regards, Muneer.
6a0 Disk soft media error