我的旧2 CPU服务器（32位LV Xeon，centos 5）驱动raid6arrays。 由于我从7x2T增长到8x2T（我不得不在CD上启动一个“更现代化”的fedora，甚至可以进行82小时的增长，但这是另一回事）LVM仅识别10.92TB / dev / md0的12TB，不到10 TB的文件系统：
[root@svr ~]# mdadm --detail /dev/md0; pvdisplay /dev/md0; fdisk -l /dev/md0; df -k /dev/md0: Version : 0.90 Creation Time : Tue Dec 28 05:26:04 2010 Raid Level : raid6 Array Size : 11721071616 (11178.09 GiB 12002.38 GB) Used Dev Size : 1953511936 (1863.01 GiB 2000.40 GB) Raid Devices : 8 Total Devices : 8 Preferred Minor : 0 Persistence : Superblock is persistent Update Time : Mon May 28 17:53:18 2012 State : clean Active Devices : 8 Working Devices : 8 Failed Devices : 0 Spare Devices : 0 Chunk Size : 64K UUID : 6de03491:96f53423:b23fa12b:2f674132 Events : 0.51806 Number Major Minor RaidDevice State 0 8 17 0 active sync /dev/sdb1 1 8 33 1 active sync /dev/sdc1 2 8 49 2 active sync /dev/sdd1 3 8 65 3 active sync /dev/sde1 4 8 81 4 active sync /dev/sdf1 5 8 97 5 active sync /dev/sdg1 6 8 129 6 active sync /dev/sdi1 7 8 113 7 active sync /dev/sdh1 --- Physical volume --- PV Name /dev/md0 VG Name vg0 PV Size 10.92 TB / not usable 2.75 MB Allocatable yes (but full) PE Size (KByte) 4096 Total PE 2861589 Free PE 0 Allocated PE 2861589 PV UUID KSZAHI-oldy-hpmS-gCk9-9a6z-psGT-2Ui6L8 Disk /dev/md0: 12002.3 GB, 12002377334784 bytes 2 heads, 4 sectors/track, -1364699392 cylinders Units = cylinders of 8 * 512 = 4096 bytes Disk /dev/md0 doesn't contain a valid partition table Filesystem 1K-blocks Used Available Use% Mounted on /dev/mapper/VolGroup00-LogVol00 75449724 59475364 12079884 84% / /dev/sda1 101086 62152 33715 65% /boot tmpfs 5131380 0 5131380 0% /dev/shm /dev/mapper/vg0-Movies 9767428096 8968488468 798939628 92% /mnt/Movies [root@svr ~]# uname -a Linux svr.gheiden.com 2.6.18-308.1.1.el5PAE #1 SMP Wed Mar 7 04:57:46 EST 2012 i686 i686 i386 GNU/Linux LVM或xfs是否有32位的限制来产生这些9.8 TB？ 将重新分区的光盘帮助2个设备<10TB创build？ 现在我无法做到这一点，没有余地备份数据…
添加：
Centos 5.8
[root@svr ~]# xfs_info /mnt/Movies/ meta-data=/dev/vg0/Movies isize=256 agcount=41, agsize=61047232 blks = sectsz=512 attr=0 data = bsize=4096 blocks=2441889792, imaxpct=25 = sunit=0 swidth=0 blks, unwritten=1 naming =version 2 bsize=4096 log =internal bsize=4096 blocks=32768, version=1 = sectsz=512 sunit=0 blks, lazy-count=0 realtime =none extsz=4096 blocks=0, rtextents=0 [root@svr ~]# lvdisplay /dev/vg0/Movies --- Logical volume --- LV Name /dev/vg0/Movies VG Name vg0 LV UUID v1ilLf-nUe7-8grx-XcS1-EJXp-hPdl-mcRrb3 LV Write Access read/write LV Status available # open 1 LV Size 10.92 TB Current LE 2861589 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 1536 Block device 253:2