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Question ________________________________Response__________________________________
Site and Endpoints
What is the site name? FNAL
Which endpoint URLs do your archival systems expose? srm://cmssrm.fnal.gov srm://cmsdca2.fnal.gov
How is tape storage selected for a write (choice of endpoint, specification of a spacetoken, namespace prefix). metadata tags in the namespace directory tree
Queue
What limits should clients respect?  
---> Max number of outstanding requests queue depth is ~15k, if full, clients retry
---> Min/Max requests submitted at one time no limit
---> Min/Max bulk request size? no limit
Should clients back off under certain circumstances?  
---> How is this signalled to client?  
---> For which operations?  
Is it advantageous to group requests by a particular criterion (e.g. tape family, date)?  
---> What criterion?  
Prioritisation
Can you handle priority requests?
---> How is this requested?  
Protocol support
Are there any unsupported or partially supported operations (e.g. pinning) ?  
Timeouts
What timeouts do you recommend?  
Do you have hardcoded or default timeouts?  
Operations and metrics
Can you provide total sum of data stored by VO in the archive to 100TB accuracy? yes
Can you provide space occupied on tapes by VO (includes deleted data, but not yet reclaimed space) to 100TB accuracy? yes
How do you allocate free tape space to VOs? quatos on a common pool
What is the frequency with which you run repack operations to reclaim space on tapes after data deletion? frequently with CMS
Recommendations for clients
Recommendation 1  
---> Information required by users to follow advice  
Recommendation 2  
-- OliverKeeble - 2018-01-30
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Topic revision: r3 - 2018-04-15 - BoJayatilaka1
 
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