Re: can't mount RAID-1 btrfs after reboot

2009-09-01 Thread Calvin Walton
On Mon, 2009-08-31 at 01:09 +0200, Tomasz Chmielewski wrote: Jens Axboe wrote: I'm able to mount the filesystem by using /dev/sdb4: # mount /dev/sdb4 /mnt/btrfs/ After which I can unmount it, and use /dev/sda4 to mount the filesystem: # umount /dev/sdb4 # mount /dev/sda4

Re: New idea about RAID and SSD

2009-09-01 Thread jim owens
Massimo Maggi wrote: Hi, SSDs have low latency but a high price per GB, Traditional hard disks have high latency, but high sequential read/write speed and low price per GB. Is possibile to use a SSD for metadata, which requires many seeks and is relatively small, in a special RAID mode with a

Re: New idea about RAID and SSD

2009-09-01 Thread Sander
Hello Massimo, Massimo Maggi wrote (ao): SSDs have low latency but a high price per GB, Traditional hard disks have high latency, but high sequential read/write speed and low price per GB. Is possibile to use a SSD for metadata, which requires many seeks and is relatively small, in a special