Hi to all, I need some info about stripe_cache_size Is that a sort of "writeback" cache? Higher the number, higher the amount of data to be cached in ram before writing to disks, right? Some questions: 1) any upper limit for that value ? Can I set it near 1GB like most hardware controller? 2) why on my RAID-6 I don't have /sys/block/md0/md/stripe_cache_size ? As I would like to replace most of our HW raid controller with mdadm, any suggestion on how to improve RAID-6 speed ? Modern CPU aren't an issue, I don't think that double-parity calculation could create any bottleneck on a modern CPU. The real advantages of a raid controller are mostly 2: 1) the writeback cache (1GB or 2GB) 2) the ability to automatically replace a disk by hotswapping it. Any solution to this ? For the "2", i've tried by configuring the POLICY in mdadm.conf but new disk is never reconized and I always have to manually add the new disk to the array. -- 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
