On Mon, Feb 03, 2020 at 03:12:06PM -0800, Alan Latteri wrote: > I should have read your response more thoroughly as you say exactly that, “behaves as a single disk”. > > Here is the output from the mkfs.xfs command. Not sure if those warning indicate any harm. > > [root@chwumbo ~]# mkfs.xfs -f -d su=2560k,sw=5 /dev/chwumbo/data > mkfs.xfs: Specified data stripe unit 5120 is not the same as the volume stripe unit 8192 > mkfs.xfs: Specified data stripe width 25600 is not the same as the volume stripe width 16384 What is /dev/chwumbo/data? It's reporting that it is a su=4M,sw=2 device, not a device with the physical characteristics you described. If it's LVM, it needs to be configured to align to the underlying storage as well (i.e. 2560kB allocation units and alignment) so that it doesn't cause the filesystem to be misaligned on the disks.... > meta-data=/dev/chwumbo/data isize=512 agcount=728, agsize=268434560 blks > = sectsz=4096 attr=2, projid32bit=1 > = crc=1 finobt=1, sparse=1, rmapbt=0 > = reflink=1 > data = bsize=4096 blocks=195316939776, imaxpct=1 > = sunit=640 swidth=3200 blks > naming =version 2 bsize=4096 ascii-ci=0, ftype=1 > log =internal log bsize=4096 blocks=521728, version=2 > = sectsz=4096 sunit=1 blks, lazy-count=1 > realtime =none extsz=4096 blocks=0, rtextents=0 Otherwise that looks like a normal 728TB filesystem. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx
