所以我真的是 Linux 新手，正在边学边做，构建 FOG 服务器。我最近将我的 FOG 服务器连接到 iSCSI NAS 设备。当我查看要分区的磁盘时，似乎我有两个副本。我可以删除一个吗？为什么有两个？
[ 25.390122] sd 5:0:0:0: Attached scsi generic sg3 type 0
[ 25.391593] sd 5:0:0:0: [sdb] Very big device. Trying to use READ CAPACITY(16).
[ 25.391837] sd 5:0:0:0: [sdb] 17488150528 512-byte logical blocks: (8.95 TB/8.14 TiB)
[ 25.392079] sd 5:0:0:0: [sdb] Write Protect is off
[ 25.392083] sd 5:0:0:0: [sdb] Mode Sense: 77 00 00 08
[ 25.392599] sd 5:0:0:0: [sdb] Write cache: disabled, read cache: disabled, doesn't support DPO or FUA
[ 25.393716] sd 5:0:0:0: [sdb] Very big device. Trying to use READ CAPACITY(16).
[ 25.420711] sdb: unknown partition table
[ 25.421463] sd 5:0:0:0: [sdb] Very big device. Trying to use READ CAPACITY(16).
[ 25.423684] sd 5:0:0:0: [sdb] Attached SCSI disk
[ 25.464766] sd 6:0:0:0: Attached scsi generic sg4 type 0
[ 25.466368] sd 6:0:0:0: [sdc] Very big device. Trying to use READ CAPACITY(16).
[ 25.466836] sd 6:0:0:0: [sdc] 17488150528 512-byte logical blocks: (8.95 TB/8.14 TiB)
[ 25.467369] sd 6:0:0:0: [sdc] Write Protect is off
[ 25.467373] sd 6:0:0:0: [sdc] Mode Sense: 77 00 00 08
[ 25.468057] sd 6:0:0:0: [sdc] Write cache: disabled, read cache: disabled, doesn't support DPO or FUA
[ 25.468843] sd 6:0:0:0: [sdc] Very big device. Trying to use READ CAPACITY(16).
[ 25.474337] sdc: unknown partition table
[ 25.475430] sd 6:0:0:0: [sdc] Very big device. Trying to use READ CAPACITY(16).
[ 25.476647] sd 6:0:0:0: [sdc] Attached SCSI disk
[10997.260848] nfsd: last server has exited, flushing export cache