我们有一台 Dell Poweredge 2900 系统，配有 Dell Perc 5/i 卡和 4 个 SAS 硬盘，上面有 NTFS 分区。我们在这个控制器上的一个 raid 阵列上安装了 CentOS，但使用的是另一个控制器，运行正常。
我们现在尝试访问上面显示的驱动器，但它们没有在 /dev 中显示为 sdb 等。
sda 是我们安装 centos 的驱动器，它有 sda1、sda2、sda3 等。CDROM 也已被拾取。
如果我扫描 scsi 设备，则会发现 perc 和 adaptec 控制器。sg0 是 CDROM，sg2 是安装的 centos，但我认为 sg1 是另一个驱动器，但我看不到安装分区的方法，因为 /dev 中只列出了该驱动器。
谢谢。
额外信息
fdisk-l：
Disk /dev/sda: 72.7 GB, 72746008576 bytes
255 heads, 63 sectors/track, 8844 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x11e3119f
Device Boot Start End Blocks Id System
/dev/sda1 * 1 64 512000 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2 64 8845 70528000 8e Linux LVM
Disk /dev/mapper/vg_lal2server-lv_root: 34.4 GB, 34431041536 bytes
255 heads, 63 sectors/track, 4186 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg_lal2server-lv_root doesn't contain a valid partition table
Disk /dev/mapper/vg_lal2server-lv_swap: 21.1 GB, 21139292160 bytes
255 heads, 63 sectors/track, 2570 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg_lal2server-lv_swap doesn't contain a valid partition table
Disk /dev/mapper/vg_lal2server-lv_home: 16.6 GB, 16647192576 bytes
255 heads, 63 sectors/track, 2023 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/vg_lal2server-lv_home doesn't contain a valid partition table
这些都是来自安装硬盘，而不是附加硬盘
modprobe a320raid
FATAL: Module a320raid not found.
lsscsi-v：
[0:0:0:0] cd/dvd TSSTcorp CDRWDVD TS-H492C DE02 /dev/sr0
dir: /sys/bus/scsi/devices/0:0:0:0 [/sys/devices/pci0000:00/0000:00:1f.1/host0/target0:0:0/0:0:0:0]
[4:0:10:0] enclosu DP BACKPLANE 1.05 -
dir: /sys/bus/scsi/devices/4:0:10:0 [/sys/devices/pci0000:00/0000:00:05.0/0000:01:00.0/0000:02:0e.0/host4/target4:0:10/4:0:10:0]
[4:2:0:0] disk DELL PERC 5/i 1.03 /dev/sda
dir: /sys/bus/scsi/devices/4:2:0:0 [/sys/devices/pci0000:00/0000:00:05.0/0000:01:00.0/0000:02:0e.0/host4/target4:2:0/4:2:0:0]
。 lsmod：
Module Size Used by
fuse 66285 0
des_generic 16604 0
ecb 2209 0
md4 3461 0
nls_utf8 1455 0
cifs 278370 0
autofs4 26888 4
ipt_REJECT 2383 0
ip6t_REJECT 4628 2
nf_conntrack_ipv6 8748 2
nf_defrag_ipv6 12182 1 nf_conntrack_ipv6
xt_state 1492 2
nf_conntrack 79453 2 nf_conntrack_ipv6,xt_state
ip6table_filter 2889 1
ip6_tables 19458 1 ip6table_filter
ipv6 322029 31 ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6
bnx2 79618 0
ses 6859 0
enclosure 8395 1 ses
dcdbas 9219 0
serio_raw 4818 0
sg 30124 0
iTCO_wdt 13662 0
iTCO_vendor_support 3088 1 iTCO_wdt
i5000_edac 8867 0
edac_core 46773 3 i5000_edac
i5k_amb 5105 0
shpchp 33482 0
ext4 364410 3
mbcache 8144 1 ext4
jbd2 88738 1 ext4
sd_mod 39488 3
crc_t10dif 1541 1 sd_mod
sr_mod 16228 0
cdrom 39771 1 sr_mod
megaraid_sas 77090 2
aic79xx 129492 0
scsi_transport_spi 26151 1 aic79xx
pata_acpi 3701 0
ata_generic 3837 0
ata_piix 22846 0
radeon 1023359 1
ttm 70328 1 radeon
drm_kms_helper 33236 1 radeon
drm 230675 3 radeon,ttm,drm_kms_helper
i2c_algo_bit 5762 1 radeon
i2c_core 31276 4 radeon,drm_kms_helper,drm,i2c_algo_bit
dm_mirror 14101 0
dm_region_hash 12170 1 dm_mirror
dm_log 10122 2 dm_mirror,dm_region_hash
dm_mod 81500 11 dm_mirror,dm_log
BLKIDD：
/dev/sda1: UUID="bc4777d9-ae2c-4c58-96ea-cedb342b8338" TYPE="ext4"
/dev/sda2: UUID="j2wRZr-Mlko-QWBR-BndC-V2uN-vdhO-iKCuYu" TYPE="LVM2_member"
/dev/mapper/vg_lal2server-lv_root: UUID="9238208a-1daf-4c3c-aa9b-469f0387ebee" TYPE="ext4"
/dev/mapper/vg_lal2server-lv_swap: UUID="dbefb39c-5871-4bc9-b767-1ef18f12bd3d" TYPE="swap"
/dev/mapper/vg_lal2server-lv_home: UUID="ec698993-08b7-443e-84f0-9f9cb31c5da8" TYPE="ext4"
dmesg 显示：
megaraid_sas: fw state:c0000000
megasas: fwstate:c0000000, dis_OCR=0
scsi2 : LSI SAS based MegaRAID driver
scsi 2:0:0:0: Direct-Access SEAGATE ST3146855SS S527 PQ: 0 ANSI: 5
scsi 2:0:1:0: Direct-Access SEAGATE ST3146855SS S527 PQ: 0 ANSI: 5
scsi 2:0:2:0: Direct-Access SEAGATE ST3146855SS S527 PQ: 0 ANSI: 5
scsi 2:0:3:0: Direct-Access SEAGATE ST3146855SS S527 PQ: 0 ANSI: 5
scsi 2:0:4:0: Direct-Access HITACHI HUS154545VLS300 D590 PQ: 0 ANSI: 5
scsi 2:0:5:0: Direct-Access HITACHI HUS154545VLS300 D590 PQ: 0 ANSI: 5
scsi 2:0:8:0: Direct-Access FUJITSU MBA3073RC D305 PQ: 0 ANSI: 5
scsi 2:0:9:0: Direct-Access FUJITSU MBA3073RC D305 PQ: 0 ANSI: 5
即 3 个 RAID 阵列分别为 Seagate Hitatchi 和 Fujitsu 硬盘。
进一步更新
我已经安装了 megaraid 存储管理器控制台并连接到服务器。看起来两个 CentOS 安装硬盘驱动器没有问题。其他 6 个驱动器、一个 4 磁盘的 raid 阵列和一个 2 磁盘的 raid 阵列都没有问题。其他驱动器列为（外部）未配置良好。