Hari Sekhon wrote: > I have used dmcrypt+luks before on my laptop and really like it, but > now I am contemplating using it on a very large server, around 16TB > single block device and was wondering if dmcrypt has any limit on the > size of a block device that it can be used on, as I know ext3 wouldn't > work on a block this large, it would only go to 8TB if I recall correctly. > > I cannot carve up this block device as it would be impossible to manage > properly, but I still want it to be encrypted someone. I guess I may be > able to carve and lvm join smaller blocks if I had to, as long as I knew > what the max block device size could be. For device block size: there is no special dm-crypt limitation for block device size (real limit depends on kernel configuration, like support for large block devices switched on, but this applies to all block devices.) (Btw lvm uses device-mapper too, so you can use it for managing space over or below dmcrypt device, but the device size limits will be the same.) Another issue is security and suitability of using some encryption modes for such big block device (encrypted with one key) ... Milan -- mbroz@xxxxxxxxxx --------------------------------------------------------------------- dm-crypt mailing list - http://www.saout.de/misc/dm-crypt/ To unsubscribe, e-mail: dm-crypt-unsubscribe@xxxxxxxx For additional commands, e-mail: dm-crypt-help@xxxxxxxx
