Hi, On Sat, 2023-04-22 at 09:20 +0800, Wang Yugui wrote: > Hi, > > Is there some work for gfs2 multiple device support? > Do you mean multiple devices generically, or specifically the md driver?
> if multiple device support, > 1, No need of RAID 0/1/5/6 support. > nvme SSD is fast enough for single thread write. I'm not sure I understand this. Multiple device support generally means at least one of the RAID modes. > > 2, can we limit one journal into one device? The filesystem always assumes a single device with one or more journals. If multiple devices are used, that is done at the block layer, which is below the filesystem layer. > > 3, can we just write lock one device, so better write throughput? Do you have a specific application in mind? Or certain performance levels that you need to hit? The write performance will depend a lot on the I/O pattern, and the underlying device performance. We'll need a bit more detail to be more specific I'm afraid, Steve. > > Best Regards > Wang Yugui (wangyu...@e16-tech.com) > 2023/04/22 > >
