We have already disclosed that RST 11.5 is bringing what we believe to be the key feature for adoption of Solid Storage Drives (SSDs) into enterprise, and that is TRIM and Garbage Collection when SSDs are inside a RAID array. We know today that the supported RAID arrays modes are 0 (stripping), 1 (mirror), 1+0 and 5 (min three drive stripe with redundancy).
RST RAID is also getting a Verify and Repair Scheduler, enabling users to "schedule V&R operations on daily, weekly or monthly basis". Given that out of all RAID controllers we have tested Intel has the slowest RAID5 rebuild time, this is a welcoming change.
The most welcoming piece of news is that Intel RST 11.5 will even support several year old Eagle Lake (3-Series) and Montevina (4-Series) Chipsets. We are talking about ICH9M, ICH9ME, ICH10R, ICH10DO and ICH10D Southbridges. Support for Ibex Peak (5-Series), Cougar Point (6-Series) and Panther Point (7-Series - Maho Bay, Chief River and Carlow-WS) is also a given. RST 11.5 is expected to formally debut in the first half of 2012 (alpha versions are in the wild already), with 11.6 being a refreshed version with full support for Windows 8 which are expected to arrive during third quarter of this year.
TRIM command allows an operating system to inform a solid-state drive (SSD) which blocks of data are no longer considered in use and can be wiped internally. When the operating system later performs a write operation to one of the sectors, which it considers free space, it effectively becomes an overwrite operation from the point of view of the storage medium.
After reading a few reviews, I'm expecting between 900MB/s-1GB/s with the two drives in RAID0. I thought TRIM was more for the health of the drive, not speed?
I'm a novice when it comes to SSDs.
I believe that's wear leveling that ensures that the drive functions as long as possible. TRIM simply deletes data marked for deletion as a background process. From my understanding it's all handled within the drive itself so if you unplugged the drive mid-TRIM then plugged it back in somewhere else the TRIM command would continue to execute. It also has the beneficial, or nasty depending on your outlook, side effect of making the data virtually unrecoverable.
Last edited by brbubba; 04-12-2012 at 10:51 AM..
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