-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I've been unable to find anything definitive about what happens if I use RAID0 to join an SSD and HDD together with respect to performance (latency, throughput). The future is obvious (hot data tracking, using most appropriate device for the data, data migration).
In my specific case I have a 250GB SSD and a 500GB HDD, and about 250GB of files (constantly growing). One message I saw said that new blocks are allocated on the device with the most free space which implies the SSD would be virtually unused in my case, except for metadata which would only be used half the time. At the moment I have two independent filesystems (one per device) and manually move data files between them using symlinks to keep pathnames the same. This requires keeping lots of slop free space on the SSD as well as administration whenever it runs out of space. My hope would be overall performance between that of the two devices, and closer to that of the SSD. Roger -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAlEI54kACgkQmOOfHg372QR1HwCfROJ10FAC51V0wuLSRwPq0LSL 2GwAmQF1F2k3cthGThEbf67Xn3usKS1K =HFi8 -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
