✎ [V8] ISSUE: Unable to do backup (Failed to download v6 index) when performing backup after upgrading AhsayCBS to 8.1 or above [Ahsay Wiki]

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===== [V8] ISSUE: Unable to do backup (Failed to download v6 index) when performing backup after upgrading AhsayCBS to 8.1 or above   =====

<html> 
 <b>
  Article ID:
 </b>
 8058
 <br/>
 <b>
  Reviewed:
 </b>
 2019-06-15
 <br/>
 <br/>
 <b>
  Product Version:
 </b>
 <br/>
 AhsayACB / AhsayOBM: 8.1 to 8.x
 <br/>
 OS: All platforms
 </html>

===== Problem Description =====
<html>
 After upgrading the backup server from version 6 to 8.1 or above, the following error message is displayed when performing a backup of any type:
 <br/>

 <table 880"="" border="0" cellpadding="0" cellspacing="0" width="800">
  <tr>
   <td bgcolor="#E8E8E8" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-TOP: #C0C0C0  1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="middle">
    No.
   </td>
   <td bgcolor="#E8E8E8" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-TOP: #C0C0C0  1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="middle">
    Type
   </td>
   <td bgcolor="#E8E8E8" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-TOP: #C0C0C0  1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="middle">

    Timestamp
   </td>
   <td bgcolor="#E8E8E8" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-TOP: #C0C0C0 1px solid; BORDER-RIGHT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="middle">
    Log
   </td>
  </tr>
  <tr>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    *
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    info
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    YYYY/MM/DD
    hh:mm:ss
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-RIGHT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="middle">
    ...
   </td>
  </tr>
  <tr>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    *
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    ...
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    ...
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-RIGHT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="middle">
    Downloading server file list...
   </td>
  </tr>
  <tr>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    *
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    <font color=#FF0000>
     erro
    </font>
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    YYYY/MM/DD
    hh:mm:ss
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-RIGHT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="middle">
    Unable to do backup, Error= [MigrateV6Index.downloadV6Index]
    <br/>
    Failed to download v6 index
   </td>
  </tr>
  <tr>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    *
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    ...
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    ...
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-RIGHT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="middle">
    ...
   </td>
  </tr>
  <tr>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    *
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">

    <font color=#FF0000>
     erro
    </span>
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="top">
    ...
   </td>
   <td bgcolor="#ffffff" style="BORDER-LEFT: #C0C0C0 1px solid; BORDER-RIGHT: #C0C0C0 1px solid; BORDER-BOTTOM: #C0C0C0 1px solid" valign="middle">
    null
   </td>
  </tr>
 </table>
</html>



===== Cause =====
<html>
 This issue can occurs if the index file of the corresponding backup set is corrupted before the upgrade. The corrupted index file cannot be retrieved for the sub-sequence backup jobs after the upgrade.
</html>



===== Resolution =====
<html>
 To resolve the issue, perform a single backup set rebuild for the corresponding backup set, and then perform another backup job afterward.
 <br/>
 <br/>
 Refer to the following article for instruction on how to perform a backup set rebuild:
 <br/>
 <br/>
 <a href="http://wiki.ahsay.com/doku.php?id=public:8056_faq:how_to_run_a_single_backup_set_rebuild_for_legacy_backup_set">
  FAQ: How to run a single backup set rebuild for legacy backup set created in version 6?
 </a>
</html>


===== Keywords =====
index, corrupted, migrate, migration, upgrade, patch
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