On 5/21/2011 6:54 AM, Ed W wrote: > In fact if you go back to my question, the *entire* point is that I > don't want the choice of card to be a point of failure, ie it's my > specific point to purchase a card such that it can be swapped out for > near any other card in the event of failure. You're given about 3 or 4 conflicting requirement now WRT your 'perfect' HBA. What HBAs are you currently using? How many of your stated requirements over the past few days do your current HBAs fulfill? Do you have a tape or D2D backup system in place? There is no guarantee that you can swap one dead HBA for another brand with a different chipset on board and have it work without issue. If you are that concerned you need to buy two identical cheap HBAs so you have a spare. But wait! You must have hardware write cache for md RAID as well. But if you do that, you're locked into that vendor's cards. And on, and on... I've never seen nor heard of a real SA in a business environment vacillate like this over a simple RAID/HBA acquisition, as if the company's entire 1st quarter net profit was being wrapped up in this HBA purchase. And I've never head of an SA being concerned about cable tripping of all damn things taking down a server. Something in this whole thread just doesn't jibe... -- Stan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
