Description and scope of the service: Difference between revisions

Revision as of 19:50, 30 May 2016

**BWDA Storage Classes**
Name	Max avg. access time	Storage Location	# of copies	comment
Class 0	<10 seconds	disk only	1	na	high available RAID6/E2EDI
Class 1 - Standard	<10 hours	tape only	2	regular archive storage comparable to Microsoft Azure and Amazon AWS
Class 2 - Premium	<10 minutes	disk cache in front of tape	2	disk buffer cache in front of tape large enough to hold a working set of the data to guarantee access times
Class 3 - Premium Plus	<10 hours	tape only	3	super safe storage. targeting 20 nines. Third location outside computer centre.

@@ Line 5: / Line 5: @@
 ||Class 0||<10 seconds||disk only||1||na||high available RAID6/E2EDI
 |-
-||Class 1 - Standard||<10 minutes||disk cache in front of tape||1||disk buffer cache in front of tape large enough to hold a working set of the data to guarantee access times
+||Class 1 - Standard||<10 hours||tape only||2||regular archive storage comparable to Microsoft Azure and Amazon AWS
 |-
-||Class 2 - Premium||<10 hours||tape only||2||regular archive storage comparable to azure, aws
+||Class 2 - Premium||<10 minutes||disk cache in front of tape||2||disk buffer cache in front of tape large enough to hold a working set of the data to guarantee access times
 |-
 ||Class 3 - Premium Plus||<10 hours||tape only||3||super safe storage. targeting 20 nines. Third location outside computer centre.