Update storage-redundancy.md

Add Cold Tier Availability.

Author: fhryo-msft

articles/storage/common/storage-redundancy.md

@@ -191,8 +191,8 @@ The following table describes key parameters for each redundancy option:
 | Parameter | LRS | ZRS | GRS/RA-GRS | GZRS/RA-GZRS |
 |:-|:-|:-|:-|:-|
 | Percent durability of objects over a given year | at least 99.999999999% (11 9's) | at least 99.9999999999% (12 9's) | at least 99.99999999999999% (16 9's) | at least 99.99999999999999% (16 9's) |
-| Availability for read requests | At least 99.9% (99% for cool or archive access tiers) | At least 99.9% (99% for cool access tier) | At least 99.9% (99% for cool or archive access tiers) for GRS<br/><br/>At least 99.99% (99.9% for cool or archive access tiers) for RA-GRS | At least 99.9% (99% for cool access tier) for GZRS<br/><br/>At least 99.99% (99.9% for cool access tier) for RA-GZRS |
-| Availability for write requests | At least 99.9% (99% for cool or archive access tiers) | At least 99.9% (99% for cool access tier) | At least 99.9% (99% for cool or archive access tiers) | At least 99.9% (99% for cool access tier) |
+| Availability for read requests | At least 99.9% (99% for cool/cold/archive access tiers) | At least 99.9% (99% for cool/cold access tier) | At least 99.9% (99% for cool/cold/archive access tiers) for GRS<br/><br/>At least 99.99% (99.9% for cool/cold/archive access tiers) for RA-GRS | At least 99.9% (99% for cool/cold access tier) for GZRS<br/><br/>At least 99.99% (99.9% for cool/cold access tier) for RA-GZRS |
+| Availability for write requests | At least 99.9% (99% for cool/cold/archive access tiers) | At least 99.9% (99% for cool/cold access tier) | At least 99.9% (99% for cool/cold/archive access tiers) | At least 99.9% (99% for cool/cold access tier) |
 | Number of copies of data maintained on separate nodes | Three copies within a single region | Three copies across separate availability zones within a single region | Six copies total, including three in the primary region and three in the secondary region | Six copies total, including three across separate availability zones in the primary region and three locally redundant copies in the secondary region |
 
 For more information, see the [SLA for Storage Accounts](https://azure.microsoft.com/support/legal/sla/storage/v1_5/).