03-20-2018 05:16 AM
Hi all,
With ECS as you may know the older model of 'device-level sharing' that used to be available on Centera is no longer exist. The device itself performs sort of compression before saving objects but it's not exactly a replacement.
However, the EV documentation albeit not very specific, as usual, points out that Streamer API devices can participate in SIS sharing so I am wondering if EV actually does SIS before wrapping things into objects and storing them on ECS or other Streamer API devices?
TL;DR: is EV single instancing is available on Vault Store Partitions connected through Streamer API?
Many thanks
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03-20-2018 10:55 AM
Hi Mouse,
Yes, with these types of Streamer devices EV will SIS the items and utilize the Fingerprint Database to perform SIS on all items as long as sharing is enabled. The objects (DVS, DVSSP, DVSCC...) are then passed along to storage.
With Centera EV did not use the FP DB to perform SIS.
Regards,
Patrick
03-20-2018 10:55 AM
Hi Mouse,
Yes, with these types of Streamer devices EV will SIS the items and utilize the Fingerprint Database to perform SIS on all items as long as sharing is enabled. The objects (DVS, DVSSP, DVSCC...) are then passed along to storage.
With Centera EV did not use the FP DB to perform SIS.
Regards,
Patrick
03-20-2018 09:45 PM
Hey Patrick, many thanks for the clarification, this is quite a bit of relief. I think it's worth emphasising somewhere in EV documentation.
08-04-2023 05:33 AM
Hi guys,
EV can uses SIS during save items to ECS. Many thanks
DELL notices inside its documentation that ECS doesn't SIS , see bellow
Single instancing
Unlike the Centera system, ECS does not single-instance duplicate objects that are stored on it. ECS uses
inline compression to reduce the storage consumed when storing objects
So, ECS uses compression technology. Do you have a experience with capacity planning of ECS ?
We have enable SIS on current NTFS partitions and we have original capacity 85TB ( EV report, see bellow) and our NTFS partitions have perhaps 30TB occupied.
Total size of archived items MB : 73321170
Total original size of items MB: 84890124
Can I assume that ECS store with API Streamer will take approximately the same capacity ? There are capacity calculator for ECS with EV ? ( I have EV calculator ).
And second question. Do you have experience with any tools for move archive from NTFS to ECS ? We don't use Exchange mailbox or journal archives, but SMTP office365 archive, Sharepoint and File System archives.
Many thanks