On 2/2/17 10:46 AM, fuser ct1 wrote: > Hello list. > > Despite searching I couldn't find guidance, or many use cases, regarding > XFS beyond 100TB. > > Of course the filesystem limits are way beyond this, but I was looking for > real world experiences... > > Specifically I'm wondering about the sanity of using XFS with a couple of > 144TB block devices (my system will have two 22x8TB R60 in a 44 bay JBOD). > My storage is used for video editing/post production. > > * Has anybody here tried? XFS has been used well past 100T, sure. > * What is the likelihood of xfs_repair/check finishing if I ever needed to > run it? xfs_check no, but it's deprecated anyway because it doesn't scale. xfs_repair yes, though the amount of resources needed will depend on the details of how you populate the filesystem. On my puny celeron with 8g ram, xfs_repair of an empty 288T image file takes 2 seconds. Filling it with files will change this :) But if it's for video editing I presume you will actually be fairly light on the metadata, with a not-insane number of inodes, and very large files. But you do want to make sure that the machine administering the filesystem is fairly beefy, for xfs_repair purposes. http://xfs.org/index.php/XFS_FAQ#Q:_Which_factors_influence_the_memory_usage_of_xfs_repair.3F > * Am I nuts? Probably not. :) -Eric > I know that beyond a certain point I should be looking at a scale out > option, but the level of complexity and cost goes up considerably. > > More info: > ======= > > Previously I had an 80TB usable (96TB raw) with an LSI MegaRAID 9361 > controller. This worked very nicely and was FAST. I was careful to choose > the inode64 fstab mount option. The OS was Debian Jessie, which has > XFSPROGS version 3.2.1. > > Thanks in advance and sorry if this is not the right list. > -- > To unsubscribe from this list: send the line "unsubscribe linux-xfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
