Description and scope of the service: Difference between revisions

Revision as of 19:51, 30 May 2016

**BWDA Storage Classes**
Name	Max avg. access time	width="50" # of storage locations	# of copies	comment
Class 0	<10 seconds	disk only	1	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.

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 {| class="wikitable" style="background:#EEEEAA;"
 |+ '''BWDA Storage Classes'''
-! width="150"|Name !! width="100"|Max avg. access time !! Storage Location !! width="50"| # of copies !! comment
+! width="150"|Name !! width="100"|Max avg. access time !! width="50" # of storage locations !! width="50"| # of copies !! comment
 |-
-||Class 0||<10 seconds||disk only||1||na||high available RAID6/E2EDI
+||Class 0||<10 seconds||disk only||1||high available RAID6/E2EDI
 |-
 ||Class 1 - Standard||<10 hours||tape only||2||regular archive storage comparable to Microsoft Azure and Amazon AWS