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Re: Isis 5000 and 7000

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David Budnetz
Re: Isis 5000 and 7000
on Nov 9, 2012 at 11:30:20 pm

Bob,

ISIS 7000 is copper or optical ethernet to clients, and a proprietary form of infiniband interconnects between engines.

The principle differences between ISIS 5k and 7k are the following:

1] ISIS 5k is a SAN built on windows storage server 2008, which is sold as a turnkey product. ISIS 7000 is a clustered blade-server product running a proprietary version of linux. Each individual component of ISIS 7000 acts as a separate server element, running within the cluster; see the breakdown of components below:

a] In ISIS 7000, a storage element is not a hard drive, but rather an "ISB" -or- ISIS Storage Blade. each ISB is 2 hard drives with an embedded server on a chip. each ISB receives a set of unique IP address.

b] each engine optionally holds 1 of 2 switch modules; either an ISS (ISIS Switch Blade) which can handle 8 direct-connect 1GbE clients, 1 HiRez 10GbE client, and a 12Gb interconnect; for further expansion beyond 2 engines, you would need to populate the switch slots with ISX modules (ISIS eXpansion switch blade)to connect up to 12 engines in a stack.

2] ISIS 5000 does not have true network redundancy, while ISIS 7000 is ALWAYS configured with at least 2 VLANs.

3] The ISIS 5000 engine is an integrated unit, containing storage elements and a System Director in a single unit. ISIS 7000 uses discrete hardware components; an engine contains storage and switch blades+power supplies; the system director(and failover system director) are separate servers. Both products use add-on servers for FTP and CIFS/SMB connectivity to non-realtime clients.

4] Both ISIS 5000 & 7000 have multiple "zones" that clients can exist in. Zone 1 is directly connected to an engine. Zone 2 is connected via a qualified switch. ISIS 7000 further certifies the ability to connect low-res clients via the house network (via a separate pair of VLANs, Zone 3) and via FTP and/OR CIFS/SMB for non-realtime clients, zone 4.

6] ISIS 5000 uses a hardware RAID controller on a per-engine basis; 3x RAID5 groups per engine. ISIS 7000 ISBs are each addressed as individual elements within storage groups, which can span multiple engines. ISIS 7000 storage groups can be either mirrored or RAID6, both controlled via the ISIS system director and ISIS software backbone.

the AVID ISIS 7000 whitepaper contains some very useful information. You can find it here:
http://www.avid.com/static/resources/common/documents/whitepapers/Avid_ISIS...


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