Further to Joel’s post on Avid’s release of ISIS v4.0 software earlier in April, Avid have announced at NAB 2012 that they will soon release a 4TB Storage Blade for their ISIS 7000 Shared Storage system. This means that the ISIS (7000) system is now capable of managing storage capacity north of the Petabyte mark. Since the v4.0 software now supports 24 connected ISIS chassis the maths looks like this:
24 ISIS chassis x 16 Storage Blades per chassis = 384 Storage Blades
384 Storage Blades x 4 TB capacity per Storage Blade = 1536 TBs in total (or 1.5 Petabytes!)
These numbers are for raw storage and do not take into consideration formatting overhead and storage capacity lost to data protection.
– For a fully mirrored configuration, the maximum usable storage capacity (before loss due to formatting and the mandatory requirement to maintain unused capacity for re-distribution) would be 768 TB (the Avid ISIS mirroring scheme delivers a good compromise of data protection with real-time storage performance at all media usage resolutions for up 330 clients).
– For a system configured with fully RAID 6 protected storage (before loss due to formatting etc) the maximum usable storage capacity would be 1152 TB (RAID 6 protected storage delivers more efficient storage usage than mirroring, along with real-time storage performance at media resolutions up to 50 Mbits per second).
The above two examples are perhaps the configuration “extremes”; of course, the beauty of the ISIS 7000 file system is that you can configure your storage to be protected as you require it depending on your workflow and the resolutions of the media you (or your clients) will be working with. For example you might choose to maintain a proportion of your ISIS as RAID 6 protected storage (perhaps for Nearline usage or for storage of proxy media files) while the remainder is protected using the traditional Avid block Mirroring scheme (for the bulk of the editing work).