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Help! Unable to delete a ...

Help! Unable to delete a hypermetro pair!

Created: Oct 11, 2017 10:56:42Latest reply: Oct 23, 2018 12:54:05 1928 2 0 0 0
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Ok, so we have a LUN that needs expanding, but it part of a hypermetro pair.
I already know i need to delete and recreate the pair before expanding however it keeps saying:

Description: the connection between the local and remote devices is normal. Suggestion: Perform this operation when the local device is disconnected from the remote device

This error make no sense. I am assuming that local and remote refers to the oceanstor's, but they would never be disconnected....AHHH!

We are on V300R003 if that gives anymore help.

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Mr.V
Official Created Oct 12, 2017 02:17:05

Expand the capacity of the HyperMetro LUN

If LUN space where service data resides is insufficient, you can increase LUN capacity to meet your service requirements.

Context

To perform LUN capacity expansion in the HyperMetro feature, you must delete the HyperMetro pair. After completing the capacity expansion, you must resynchronize data. Perform the following operations:
icon-note.gif NOTE:
The primary LUN is the LUN that provides services. The secondary LUN is the LUN that stops providing services.

Procedure

  • Offline expansion (In scenarios where the CPU usage and disk usage exceed 50%, the HyperMetro replication bandwidth is insufficient, or the distance between data centers exceeds 25 km).
    1. Stop upper-layer services.
    2. Cancel the host mappings of the primary and secondary LUNs.
    3. Suspend the HyperMetro pair.
    4. Delete the HyperMetro pair.
    5. Expand the capacity of the primary and secondary LUNs.

      icon-note.gif NOTE:
      For details about how to expand a LUN, see OceanStor 5300 V3&5500 V3&5600 V3&5800 V3&6800 V3 Storage System V300R003 Capacity Expansion Guide.

    6. Create a HyperMetro pair.

      icon-note.gif NOTE:
      Select the The data at the local and remote ends is consistent. Synchronization is not required after the creation is complete. option.

    7. Map the primary and secondary LUNs to the host.
    8. On the host, scan for LUNs.
    9. Restart services.
  • Online expansion (In scenarios where the CPU usage and disk usage do not exceed 50%, the HyperMetro replication bandwidth is sufficient, or the distance between data centers is relatively short).
    1. Suspend the HyperMetro pair.
    2. Delete the HyperMetro pair.
    3. Cancel the host mapping of the secondary LUN.
    4. Expand the capacity of the primary and secondary LUNs.

      icon-note.gif NOTE:
      For details about how to expand a LUN, see OceanStor 5300 V3&5500 V3&5600 V3&5800 V3&6800 V3 Storage System V300R003 Capacity Expansion Guide.

    5. Create a HyperMetro pair.

      icon-note.gif NOTE:
      Select the Local and remote data is inconsistent. After the creation is complete, data is automatically synchronized. option.

    6. Map the secondary LUN to the host.
    7. On the host, scan for LUNs.
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2#
Mr.V
Mr.V Official Created Oct 12, 2017 02:17:05

Expand the capacity of the HyperMetro LUN

If LUN space where service data resides is insufficient, you can increase LUN capacity to meet your service requirements.

Context

To perform LUN capacity expansion in the HyperMetro feature, you must delete the HyperMetro pair. After completing the capacity expansion, you must resynchronize data. Perform the following operations:
icon-note.gif NOTE:
The primary LUN is the LUN that provides services. The secondary LUN is the LUN that stops providing services.

Procedure

  • Offline expansion (In scenarios where the CPU usage and disk usage exceed 50%, the HyperMetro replication bandwidth is insufficient, or the distance between data centers exceeds 25 km).
    1. Stop upper-layer services.
    2. Cancel the host mappings of the primary and secondary LUNs.
    3. Suspend the HyperMetro pair.
    4. Delete the HyperMetro pair.
    5. Expand the capacity of the primary and secondary LUNs.

      icon-note.gif NOTE:
      For details about how to expand a LUN, see OceanStor 5300 V3&5500 V3&5600 V3&5800 V3&6800 V3 Storage System V300R003 Capacity Expansion Guide.

    6. Create a HyperMetro pair.

      icon-note.gif NOTE:
      Select the The data at the local and remote ends is consistent. Synchronization is not required after the creation is complete. option.

    7. Map the primary and secondary LUNs to the host.
    8. On the host, scan for LUNs.
    9. Restart services.
  • Online expansion (In scenarios where the CPU usage and disk usage do not exceed 50%, the HyperMetro replication bandwidth is sufficient, or the distance between data centers is relatively short).
    1. Suspend the HyperMetro pair.
    2. Delete the HyperMetro pair.
    3. Cancel the host mapping of the secondary LUN.
    4. Expand the capacity of the primary and secondary LUNs.

      icon-note.gif NOTE:
      For details about how to expand a LUN, see OceanStor 5300 V3&5500 V3&5600 V3&5800 V3&6800 V3 Storage System V300R003 Capacity Expansion Guide.

    5. Create a HyperMetro pair.

      icon-note.gif NOTE:
      Select the Local and remote data is inconsistent. After the creation is complete, data is automatically synchronized. option.

    6. Map the secondary LUN to the host.
    7. On the host, scan for LUNs.
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  • convention：
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3#
Boreas
Boreas Created Oct 23, 2018 12:54:05

hi, here is the standard steps to expand the capacity of HyperMeter lun: http://support.huawei.com/hedex/hdx.do?docid=EDOC1000084404&id=EN-US_TOPIC_0120606823&text=Expand%252520the%252520capacity%252520of%252520the%252520HyperMetro%252520LUN&lang=en

hope it's helpfule for you.
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