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cannot perform ISSU upgrade

Publication Date:  2018-03-22 Views:  270 Downloads:  0
Issue Description

Customer contacted us because he was unable to upgrade a stack of CE6810LI.

He could not perform the upgrade because of insufficient space on 2#flash.


Alarm Information

<SWITCH_4>dir /all-filesystems

Directory of flash:/

 

  Idx  Attr     Size(Byte)  Date        Time       FileName

    0  dr-x              -  Jan 19 2018 18:47:52   $_checkpoint

    1  dr-x              -  Sep 28 2016 09:03:05   $_install_mod

    2  dr-x              -  Nov 08 2016 11:20:13   $_license

    3  dr-x              -  Jan 18 2018 19:41:53   $_security_info

    4  dr-x              -  Jan 18 2018 19:41:57   $_system

    5  -rw-    124,852,260  Jan 18 2018 19:31:17   CE6810LI-V200R001C00SPC700.cc

    6  -rw-    128,772,300  Jan 18 2018 20:20:10   CE6810LI-V200R002C50SPC800.cc

    7  drwx              -  Jan 18 2018 19:14:14   POST

    8  -rw-             43  Jan 18 2018 19:27:15   SysResTemplate.ini

    9  -rw-             97  Jan 18 2018 19:38:05   collect_diag_info.bat

   10  -rw-        613,051  Jan 18 2018 18:57:36   dbupgrade.log

   11  -rw-         33,671  Jan 18 2018 23:52:02   device.sys

   12  drwx              -  Jan 22 2018 19:51:52   logfile

   13  drwx              -  Jan 18 2018 17:44:15   temp

   14  -rw-          2,965  Jan 18 2018 23:52:02   vrpcfg.zip

   15  -rw-         19,978  Jan 16 2018 17:10:16   ztp_20180116170535.log

   16  -rw-            473  Jan 16 2018 17:07:29   ztp_20180116170535.log.1

 

269,168 KB total (24,432 KB free)

 

Directory of 2#flash:/

 

  Idx  Attr     Size(Byte)  Date        Time       FileName

    0  dr-x              -  Jan 19 2018 18:47:52   $_checkpoint

    1  dr-x              -  Sep 28 2016 09:03:05   $_install_mod

    2  dr-x              -  May 20 2017 09:28:31   $_license

    3  dr-x              -  Jan 23 2018 22:17:51   $_security_info

    4  dr-x              -  Jan 18 2018 19:54:45   $_system

    5  -rw-    124,852,260  Jan 18 2018 19:29:20   CE6810LI-V200R001C00SPC700.cc

    6  -rw-    128,772,300  Jan 18 2018 20:22:41   CE6810LI-V200R002C50SPC800.cc

    7  drwx              -  Jan 18 2018 18:59:34   POST

    8  -rw-             43  Jan 18 2018 23:52:07   SysResTemplate.ini

    9  -rw-             97  Jan 18 2018 19:51:17   collect_diag_info.bat

   10  -rw-        564,465  Jan 18 2018 19:36:12   dbupgrade.log

   11  -rw-         33,671  Jan 18 2018 23:52:06   device.sys

   12  drwx              -  Jan 18 2018 20:40:19   logfile

   13  -rw-          2,965  Jan 18 2018 23:52:03   vrpcfg.zip

   14  -rw-          1,654  Jan 16 2018 22:32:35   ztp_20180116223125.log

 

269,052 KB total (18,608 KB free)

<SWITCH_4>


Handling Process

1.We have first tried to clean the 2#flash of the files in the recycle bin, but no files were there.

 

<HUAWEI> reset recycle-bin slot2#flash

reset recycle-bin [ /f | filename | devicename ]

2.We have looked at the files in both #flash and 2#flash and other then the shared files the #flash had more files ( logs) saved but still had more free space.


Root Cause

The Fragmentation of the files on 2#flash was not optimal.

Normally the CE does defragmentation every 20 minutes, but because the 2#flash had 93% of the space used there was no space left to do the defragmentation.


Solution

To solve the issue we deleted the software version V200R002C50SPC800 so the CE had enough space to do the defragmentation.

After the defragmentation was completed we used FTP to put the software version V200R002C50SPC800 back on the CE stack and there was enough space to proceed with the ISSU upgrade. (More than 20MB free)


Suggestions

Before uploading huge files on the device manually start the defragmentation process. In order to manually start defragmentation use the command <Huawei>save


END