Linux如何将文件以固定N行作为一个单位来排序？

xiaogang8705

原文件内如如下。
mpath1 (36001405ef399f9bd5982d000fd0000d6) dm-15 ,LU
size=1.0T features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 6:0:0:3 sde 8:64  active ready  running
  `- 7:0:0:3 sdi 8:128 failed faulty running
mpath0 (36001405e8494627dff43dcb92d0000d6) dm-14 ,LU
size=200G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 6:0:0:2 sdd 8:48  active ready  running
  `- 7:0:0:2 sdh 8:112 failed faulty running
mpath3 (3600140573ef4c24de0b9d7034d0000d6) dm-13 ,LU
size=50G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 6:0:0:1 sdc 8:32  active ready  running
  `- 7:0:0:1 sdg 8:96  failed faulty running
mpath10 (360014056f9e9b92defe6deceed0000d6) dm-12 ,LU
size=500G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 6:0:0:0 sdb 8:16  active ready  running
  `- 7:0:0:0 sdf 8:80  failed faulty running
希望能按照固定的红色框（5行）为单位来排序，排序关键字是mpathX。
mpath1 (36001405ef399f9bd5982d000fd0000d6) dm-15 ,LU
size=1.0T features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 6:0:0:3 sde 8:64  active ready  running
  `- 7:0:0:3 sdi 8:128 failed faulty running
希望的结果是如下。各位大神，帮忙看看是否有办法。
mpath0 (36001405e8494627dff43dcb92d0000d6) dm-14 ,LU
size=200G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 6:0:0:2 sdd 8:48  active ready  running
  `- 7:0:0:2 sdh 8:112 failed faulty running
mpath1 (36001405ef399f9bd5982d000fd0000d6) dm-15 ,LU
size=1.0T features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 6:0:0:3 sde 8:64  active ready  running
  `- 7:0:0:3 sdi 8:128 failed faulty running
mpath3 (3600140573ef4c24de0b9d7034d0000d6) dm-13 ,LU
size=50G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 6:0:0:1 sdc 8:32  active ready  running
  `- 7:0:0:1 sdg 8:96  failed faulty running
mpath10 (360014056f9e9b92defe6deceed0000d6) dm-12 ,LU
size=500G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 6:0:0:0 sdb 8:16  active ready  running
  `- 7:0:0:0 sdf 8:80  failed faulty running