(y,N) y Discarding device blocks:done Creating filesystem with 31258710 4k blocks and 7815168 inodes Filesystem UUID: 6077971a-8a7c-4e41-a8bc-43ac01efedae Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 1123942...
Attempt to discard blocks at mkfs time (discarding blocks initially is useful on solid state devices and sparse / thin-provisioned storage). When the device advertises that discard also zeroes data (any subsequent read after the discard and before write returns zero), then mark all not-yet-ze...
kube@colemick-kany04-node-0:~$ time sudo mkfs.ext4 -E lazy_itable_init=0,lazy_journal_init=0 -F /dev/sdc mke2fs 1.42.13 (17-May-2015) /dev/sdc contains a ext4 file system created on Wed Aug 17 07:52:59 2016 Discarding device blocks: done Creating filesystem with 2621440 4k ...
In order to create the filesystem use the -K option with mkfs command. It will disables the block discard at creating time. More information on mkfs man page: Raw -K Keep, do not attempt to discard blocks at mkfs time (discard...
(31-Jan-2017) Discarding device blocks: done Creating filesystem with 1024 4k blocks and 512 inodes Allocating group tables: done Writing inode tables: done Writing superblocks and filesystem accounting information: done / # mount -o loop /test-dev-blk /mnt mount: can't setup loop device: ...
索引也是一种排好序的数据结构，它记录了原数据的单个列或多个列，通过索引查询，程序不需要查所有记录...
Attempt to discard blocks at mkfs time (discarding blocks initially is useful on solid state devices and sparse / thin-provisioned storage). When the device advertises that discard also zeroes data (any subsequent read after the discard and before write returns zero), then mark all not-yet-ze...
Attempt to discard blocks at mkfs time (discarding blocks initially is useful on solid state devices and sparse / thin-provisioned storage). When the device advertises that discard also zeroes data (any subsequent read after the discard and before write returns zero), then mark all not-yet-ze...
Attempt to discard blocks at mkfs time (discarding blocks initially is useful on solid state devices and sparse / thin-provisioned storage). When the device advertises that discard also zeroes data (any subsequent read after the discard and before write returns zero), then mark all not-yet-z...
Attempt to discard blocksat mkfs time (discarding blocks initially is useful on solid state devices and sparse / thin-provisioned storage). When the device advertises that discard also zeroes data (any subsequent read after the discard and before write returns zero), then mark all ...