Controller recomendation
I was using SuperTrak EX8300/8350, but it have some drawbacks like it's slow when 6 hdds are connected (max 20MBps per drive).
Can anybody recommend some PCIe sata controller which
- supports partial raids (raid1 or raid5 or raid6 build on first halfs from drive capacity, while the other patrs are seen as single drives)
- 1TB hdd support (EX8300 fails on such hdds)
- if it have it's own cache, then battery back up is required
- will provide full hdd speed even thought 6 hdds are read/write concurrently.
Can anybody recommend some PCIe sata controller which
- supports partial raids (raid1 or raid5 or raid6 build on first halfs from drive capacity, while the other patrs are seen as single drives)
- 1TB hdd support (EX8300 fails on such hdds)
- if it have it's own cache, then battery back up is required
- will provide full hdd speed even thought 6 hdds are read/write concurrently.
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I asked the Adaptec - the controller does not support "Multiple arrays and types per disk drive" :(
The Adaptecs are very strong at handling everything automatically. They do not require as much user interaction as some others. Because of this, however, their BIOS is sometimes a little weak on tools to manually try to fix an array. LSI has great tools to manually control or fix an array, but will usually require the user to do more as it does not automatically decide how to handle as much. Most Adaptecs or LSIs will allow you to create multiple arrays across the same drives. You will usually have to use some sort of array management software to configure all arrays after the first. That is, it is capable. That does NOT mean it is supported. That is usally a bad choice for configuration. The controller cannot be guaranteed to know how to handle any given situation or rebuild when there is a problem. That is really what OS partitioning is for. Is there a specific reason why this is the configuration you need?
ASKER
I only need system and some little importand data safe, then I need as much as possible capacity.
But let's focus which controller can do it for me.
But let's focus which controller can do it for me.
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Thanx for support.
I ended up with 3ware, hence no partial raid there anyway.
I ended up with 3ware, hence no partial raid there anyway.
More details on 31205, the unit I have, here:
http://www.adaptec.com/en-US/products/raid_tech/sata_drives/SAS-31205/
wb