BriatADP
1 Copper

Cannot operate on the device because it is a 'META MEMBER'

Hello.

I am trying to split an SRDF group that I did not create.  When I do I get an error that one of the devices is a Meta Memeber.

symrdf -sid 2489 -f group_24.dev -rdfg 24 split

Execute an RDF 'Split' operation for device file
'group_24.dev' (y/) ? y

An RDF 'Split' operation execution is in progress for device
file 'group_24.dev'. Please wait...

Cannot operate on the device because it is a 'META MEMBER'

I am not sure how that can happen.  The device in question is in a consistent state but when I do a show dev on it it does indeeed say it is a Meta member.

/var/symapi/log/

01/25/2010 23:03:53.914  12116      1 EMC:SYMRDF                rdf_validate_devlist Local device: 1BD4 (SID: 000190102489) is a META member.

symrdf -sid 2489 -f group_24.dev -rdfg 24 query

N/A     1BD4 RW       0        0 RW 28F4 WD       0        0 A..   Consistent

symdev -sid 2489 show 1bd4

    Device Symmetrix Name    : 1BD4
    Device Serial ID         : N/A
    Symmetrix ID             : 000190102489

    Device Configuration     : RDF1+Mir        (Meta Member,
                                                Non-Exclusive Access)

So my question is how could this have been SRDF'd from the start since it is a meta member?  Like I said before I did not set this group up originally.

Thanks!

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8 Replies
RRR
5 Osmium

Re: Cannot operate on the device because it is a 'META MEMBER'

AFAIK you will indeed see all symdev's and not just all META heads. so look up the META head of this META member by issuing the "symdev show (META member)"command and try your split command again against the META head.

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JamesBEMC
3 Argentium

Re: Cannot operate on the device because it is a 'META MEMBER'

Hi there

Ok, so either a configuration change has occurred, which the symcli host is unaware of, or else you have held devices, of which this meta is one of them (probably due to a snap, etc).

On the host you ran the symrdf command from perform the following and send the output please.

1) symcfg discover

2) symdev -sid 2489 list -held

3) symdev show 1BD4

When did this RDF group last sync/split successfully?

Thanks

James.

0 Kudos
RRR
5 Osmium

Re: Cannot operate on the device because it is a 'META MEMBER'

1) symcfg without the extra h

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JamesBEMC
3 Argentium

Re: Cannot operate on the device because it is a 'META MEMBER'

Where? Dont see it

Thanks RRR - command syntax fixed now.

0 Kudos
RRR
5 Osmium

Re: Cannot operate on the device because it is a 'META MEMBER'

You're welcome. Always glad to help

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BriatADP
1 Copper

Re: Cannot operate on the device because it is a 'META MEMBER'

Not sure when the last split was, like I said I did not set this up originally.  I just inherited it

> symcfg -sid 2489 discover

Attempting discovery of Symmetrix 000190102489

This operation may take up to a few minutes. Please be patient...

> symdev -sid 2489 list -held

Symmetrix ID: 000190102489

Could not select any Symmetrix devices to list.

> symdev -sid 2489 show 1bd4

    Device Physical Name     : Not Visible

    Device Symmetrix Name    : 1BD4
    Device Serial ID         : N/A
    Symmetrix ID             : 000190102489

    Attached BCV Device      : N/A

    Attached VDEV TGT Device : N/A

    Vendor ID                : EMC
    Product ID               : SYMMETRIX
    Product Revision         : 5772
    Device WWN               : 60060480000190102489533031424434
    Device Emulation Type    : FBA
    Device Defined Label Type: N/A
    Device Defined Label     : N/A
    Device Sub System Id     : 0x001C
    Cache Partition Name     : DEFAULT_PARTITION

    Device Block Size        : 512

    Device Capacity
        {
        Cylinders            :      18414
        Tracks               :     276210
        512-byte Blocks      :   17677440
        MegaBytes            :       8632
        KiloBytes            :    8838720
        }

    Device Configuration     : RDF1+Mir        (Meta Member,
                                                Non-Exclusive Access)

    Device is WORM Enabled   : No
    Device is WORM Protected : No

    SCSI-3 Persistent Reserve: Disabled

    Dynamic Spare Invoked    : No

    Dynamic RDF Capability   : RDF1_OR_RDF2_Capable

    STAR Mode                : No
    STAR Recovery Capability : None
    STAR Recovery State      : NA

    Device Service State     : Normal

    Device Status            : Ready            (RW)
    Device SA Status         : Ready            (RW)

    Front Director Paths (2):
        {
        ----------------------------------------------------------------------
                                 POWERPATH  DIRECTOR   PORT             LUN
                                 --------- ----------  ---- -------- ---------
        PdevName                 Type      Type Num    Sts  VBUS TID SYMM Host
        ----------------------------------------------------------------------
        Not Visible              N/A       FA   03B:0  RW   000  00  0DE  N/A
        Not Visible              N/A       FA   14B:0  RW   000  00  0DE  N/A
        }

    Meta Configuration       : Striped
    Meta Stripe Size         : 960k    (1 Cylinders)
    Meta Device Members (30) :
        {
        ----------------------------------------------------------------------
                               BCV  DATA                    RDF  DATA
                      ----------------------------  --------------------------
        Sym    Cap    Std Inv BCV Inv Pair          R1 Inv R2 Inv Pair
        Dev    (MB)   Tracks  Tracks  State         Tracks Tracks State
        ----------------------------------------------------------------------
        1BD3   8632        -       -  N/A                0      0 Consistent
        1BEB   8632        -       -  N/A                0      0 Consistent
        1BD8   8632        -       -  N/A                0      0 Consistent
        1BD6   8632        -       -  N/A                0      0 Consistent
        1BF0   8632        -       -  N/A                0      0 Consistent
        1BE6   8632        -       -  N/A                0      0 Consistent
        1BEF   8632        -       -  N/A                0      0 Consistent
        1BE4   8632        -       -  N/A                0      0 Consistent
    --> 1BD4   8632        -       -  N/A                0      0 Consistent
        1BE2   8632        -       -  N/A                0      0 Consistent
        1BDD   8632        -       -  N/A                0      0 Consistent
        1BD7   8632        -       -  N/A                0      0 Consistent
        1BDE   8632        -       -  N/A                0      0 Consistent
        1BE0   8632        -       -  N/A                0      0 Consistent
        1BE9   8632        -       -  N/A                0      0 Consistent
        1BD9   8632        -       -  N/A                0      0 Consistent
        1BDB   8632        -       -  N/A                0      0 Consistent
        1BEA   8632        -       -  N/A                0      0 Consistent
        1BDA   8632        -       -  N/A                0      0 Consistent
        1BDC   8632        -       -  N/A                0      0 Consistent
        1BE7   8632        -       -  N/A                0      0 Consistent
        1BDF   8632        -       -  N/A                0      0 Consistent
        1BE1   8632        -       -  N/A                0      0 Consistent
        1BE8   8632        -       -  N/A                0      0 Consistent
        1BE3   8632        -       -  N/A                0      0 Consistent
        1BD5   8632        -       -  N/A                0      0 Consistent
        1BE5   8632        -       -  N/A                0      0 Consistent
        1BEC   8632        -       -  N/A                0      0 Consistent
        1BEE   8632        -       -  N/A                0      0 Consistent
        1BED   8632        -       -  N/A                0      0 Consistent
        ----------------------------------------------------------------------
             258947        -       -                     0      0
        }

    Mirror Set Type          : [Data,R2 Remote,Data,N/A]

    Mirror Set DA Status     : [RW,RW,RW,N/A]

    Mirror Set Inv. Tracks   : [0,0,0,0]

    Back End Disk Director Information
        {
        Hyper Type                             : Data
        Hyper Status                           : Ready           (RW)
        Disk [Director, Interface, TID]        : [02D, C, C]
        Disk Director Volume Number            :  923 (0x39A)
        Hyper Number                           :    8
        Disk Capacity                          : 286102m
        Disk Group Number                      : 1

        Hyper Type                             : R2 Remote
        Hyper Status                           : Ready           (RW)
        Disk [Director, Interface, TID]        : [N/A,N/A,N/A]
        Disk Director Volume Number            : N/A
        Hyper Number                           : N/A

        Hyper Type                             : Data
        Hyper Status                           : Ready           (RW)
        Disk [Director, Interface, TID]        : [16D, C, C]
        Disk Director Volume Number            :  924 (0x39B)
        Hyper Number                           :    8
        Disk Capacity                          : 286102m
        Disk Group Number                      : 1
        }

    RDF Information
        {
        Device Symmetrix Name                  : 1BD4
        RDF Type                               : R1
        RDF (RA) Group Number                  : 24                (17)

        Remote Device Symmetrix Name           : 28F4
        Remote Symmetrix ID                    : 000190102166

        R2 Device Is Larger Than The R1 Device : False

        RDF Pair Configuration                 : Normal
        RDF STAR Mode                          : False

        RDF Mode                               : Asynchronous
        RDF Adaptive Copy                      : Disabled
        RDF Adaptive Copy Write Pending State  : N/A
        RDF Adaptive Copy Skew (Tracks)        : 65535

        RDF Device Domino                      : Disabled

        RDF Link Configuration                 : Fibre
        RDF Link Domino                        : Disabled
        Prevent Automatic RDF Link Recovery    : Enabled
        Prevent RAs Online Upon Power ON       : Enabled

        Device RDF Status                      : Ready           (RW)

        Device SA Status                       : Ready           (RW)
        Device RA Status                       : Ready           (RW)
        Device Link Status                     : Ready           (RW)

        Device Suspend State                   : N/A
        Device Consistency State               : Enabled
        RDF R2 Not Ready If Invalid            : Disabled

        Device RDF State                       : Ready           (RW)
        Remote Device RDF State                : Write Disabled  (WD)

        RDF Pair State (  R1 <===> R2 )        : Consistent

        Number of R1 Invalid Tracks            : 0
        Number of R2 Invalid Tracks            : 0

        RDFA Information:
            {
            Session Number                     : 23
            Cycle Number                       : 11502
            Number of Devices in the Session   : 7
            Session Status                     : Active

            Session Consistency State          : Enabled
            Minimum Cycle Time                 : 00:00:30
            Average Cycle Time                 : 00:00:30
            Duration of Last cycle             : 00:00:30
            Session Priority                   : 33

            Tracks not Committed to the R2 Side: 0
            Time that R2 is behind R1          : 00:00:58
            R2 Image Capture Time              : Tue Jan 26 10:13:40 2010
            R1 Side Percent Cache In Use       :  0
            R2 Side Percent Cache In Use       :  0

            Transmit Idle Time                 : 00:00:00
            R1 Side DSE Used Tracks            :  0
            R2 Side DSE Used Tracks            :  0
            }
        }

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JamesBEMC
3 Argentium

Re: Cannot operate on the device because it is a 'META MEMBER'

1BD3 is your meta head and you should be invoking your command against this and not a meta member (hyper)

James.

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BriatADP
1 Copper

Re: Cannot operate on the device because it is a 'META MEMBER'

Thanks James and RRR I think I have it now.

I am still in the process of learning SRDF and started off using disk groups and then made the switch device files and got way confused.

I guy I work with told me to look for the "RI Inv Tracks 0" and "R2 Inv Tracks 0" and that will tell me what my Meta heads are.


Thanks for your help!

Brian

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