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Query about rlink

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A Primary RVG can have up to 32 associated RLINKs. Although a Secondary RVG can also have 32 associated RLINKs, it can have only one active RLINK; this active RLINK represents the Primary that is currently replicating to this Secondary RVG.

How to uderstand the only one active rlink . 

If i have a secondary RVG have 32 rlinks, then only 1 rlink is active to replicate data?

How is this situation, i have several primarys and all of them indicate to the same server as secondary, then only 1 rlink is active? 


How do I add the License/feature

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I already have SFW HA 5.1 installed on my server and I just purchased a License for Volume Replicator. How do I add the feature (VR) and the License to Veritas?

8156541
1357322176

Adding new License problems

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I already have SFWHA installed on my servers, 2008r2 enterprise. I just purchased VR and need to add the Lic key. I didnt have a problem with the first server, going through programs and features I was able to add the key to Lic MGT. But when I went to repeat the process on the second server I add the key and click finsh, then when I open it back up the key is gone and I am unable to add VR.

8269161
1359470420

Replication Stop - in DCM Mode

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I am having replication configured from Primary to DR Site on Windows, today I have faced an issue where replication was stop and in DCM Mode.

What I did to resolve was started resync secondaries and everything started from scratch and things got replicated.

I would like to know what are the possible reasons when this issue occurs, and do I have any another solution to resolve this issue besides resyncing.

Will be thankful for some positive response

8266171
1359456273

SFHA/DR + VVR running on physical and virtual server

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Hi,

I am setting 3 nodes cluster at production and DR site using SFHA/DR + VVR.  At production there are 2 pairs of clusters running on physicals servers. The first pairs cluster is exchange server, second pair is Ms SQL server.  At DR site, the third nodes are running as a VM on hyper-V 

I would like to check that can SFHA/DR+ VVR work in this environment with mixtual of physical and VM (Hyper-V)?

 

Thank you

VxFS defrag on VVR volumes

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I suspect that defragging a VxFS file system on a VVR volume would result in LOTS of traffic on the link and lots of blocks requiring sync?

This would risk filling up the SRL and generate lots of sync traffic. Anyone try this or has any insight on this?

8360151
1360929438

VVR - How to add host has secondary after take over

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Hi,

I've done a take over after a crash of my primary storage.

After done all of the hardware recover, we can see than the data on this storage are lost.

I have recreate the disk group and the volumes, but  cannot  add the server has secondary because it's allready exist.

I've tried to delete the rlink with vxrlink det and vxrlink dis and vxedit rm but I've a error when I execute the vxrlink det on the primary:

"vxrlink ERROR V-5-1-10128  Database file not found"

anyone can help on this ?

Thanks,

Hervé

diskgroup does not start on secondary host

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HI All:

I configure a single vcs cluster with vvr.  I save the configuration on the following pictures

36.png

 

44.png

54.png

 

As you see on these pictures, I configure  a service named apache2 using the RVGPrimary of vvrgroup, and set the relation between two service groups with command:

>hagrp -link apache2 vvrgrp online local hard

 
All the service group and resource take online successfully. But on the secondary node of VVR, the disk group is exported and the replication does not occur.
 
vcs2:/var/VRTSvcs/log # vradmin -g data_dg repstatus rvg_b
Replicated Data Set: rvg_b
Primary:
  Host name:                  192.168.100.112
  RVG name:                   rvg_b
  DG name:                    data_dg
  RVG state:                  enabled for I/O
  Data volumes:               1
  VSets:                      0
  SRL name:                   srl_b
  SRL size:                   1.00 G
  Total secondaries:          1
Config Errors:
 192.168.100.111:            disk group missing
 
 
Is there anything wrong in my configuration ?
>cat main.cf
include "OracleASMTypes.cf"
include "types.cf"
include "Db2udbTypes.cf"
include "OracleTypes.cf"
include "SybaseTypes.cf"
 
cluster vcs (
UserNames = { admin = aHGcEBdBGeFBgJHbHFgGIg }
ClusterAddress = "192.168.4.100"
Administrators = { admin }
)
 
system vcs1 (
)
 
system vcs2 (
)
 
group ClusterService (
SystemList = { vcs1 = 0, vcs2 = 1 }
AutoStartList = { vcs1, vcs2 }
OnlineRetryLimit = 3
OnlineRetryInterval = 120
)
 
IP webip (
Device = eth0
Address = "192.168.4.100"
NetMask = "255.255.255.0"
)
 
NIC csgnic (
Device = eth0
)
 
webip requires csgnic
 
 
// resource dependency tree
//
// group ClusterService
// {
// IP webip
//    {
//    NIC csgnic
//    }
// }
 
 
group apache2 (
SystemList = { vcs1 = 0, vcs2 = 1 }
)
 
Application httpd2 (
StartProgram = "/etc/init.d/apache2 start"
StopProgram = "/etc/init.d/apache2 stop"
PidFiles = { "/var/run/httpd2.pid" }
)
 
IP ip_res (
Device = eth0
Address = "192.168.4.200"
NetMask = "255.255.255.0"
)
 
Mount appmount (
MountPoint = "/srv/www/htdocs"
BlockDevice = "/dev/vx/dsk/data_dg/data_volume"
FSType = vxfs
FsckOpt = "-n"
)
 
RVGPrimary DataRVG_pri (
RvgResourceName = DataRVG
)
 
requires group vvrgrp online local hard
appmount requires DataRVG_pri
httpd2 requires appmount
httpd2 requires ip_res
 
 
// resource dependency tree
//
// group apache2
// {
// Application httpd2
//    {
//    IP ip_res
//    Mount appmount
//        {
//        RVGPrimary DataRVG_pri
//        }
//    }
// }
 
 
group vvrgrp (
SystemList = { vcs1 = 0, vcs2 = 1 }
AutoStartList = { vcs1, vcs2 }
)
 
DiskGroup DataDG (
DiskGroup = data_dg
)
 
NIC vvrnic (
Device = eth1
)
 
RVG DataRVG (
RVG = rvg_b
DiskGroup = data_dg
)
 
DataRVG requires DataDG
DataRVG requires vvrnic
 
 
// resource dependency tree
//
// group vvrgrp
// {
// RVG DataRVG
//    {
//    DiskGroup DataDG
//    NIC vvrnic
//    }
// }
 

 


VERITAS VOLUME REPLICATION DCM LOG INCREASING

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Hi,

I have volume replicated two servers one is in my DC & another in DR in different geographic location.

As due to some technical falult the DR server was not reachable for 2 days so replication hampered. After the DR server is up but  till date the DCM log is gradually increasing day by day.

Can anyone help me in rectify this, if I have to do DC - DR drill is it possible or feasable to do that till the logs cleared.

Please help.

Thanks in advance.

how does new coming data flows when DCM resync is in progress

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Hi, All

I have some questions about VVR DCM resync,

When DCM resync is in progress, and applications still writing new data,

what does VVR need to do with the new coming data ? Is it writing to DCM or SRL ?

and if new data block is conflict with data block already marked in DCM, how does VVR resolve the conflict ?

 

Thanks

dcm resynchronization does not start automatically

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Hi all:

I am testing the vcs/vvr cluster . When I write a data which size exceeds the srl volume size, VVR goes to "logging to dcm" state. 

 

 # vradmin -g data_dg -l repstatus rvg_b
Replicated Data Set: rvg_b
Primary:
  Host name:                  192.168.100.111
  RVG name:                   rvg_b
  DG name:                    data_dg
  RVG state:                  enabled for I/O
  Data volumes:               1
  VSets:                      0
  SRL name:                   srl_b
  SRL size:                   150.00 M
  Total secondaries:          1
Secondary:
  Host name:                  192.168.100.112
  RVG name:                   rvg_b
  DG name:                    data_dg
  Rlink from Primary:         rlk_192.168.100.112_rvg_b
  Rlink to Primary:           rlk_192.168.100.111_rvg_b
  Configured mode:            asynchronous
  Latency protection:         off
  SRL protection:             autodcm
  Data status:                consistent, behind
  Replication status:         logging to DCM (needs dcm resynchronization)
  Current mode:               asynchronous
  Logging to:                 DCM (contains  5572672  Kbytes) (SRL protection logging)
  Timestamp Information:      N/A
  Bandwidth Limit:            100.00 Mbps
  Compression Mode:           On
After writing, the vvr keeps in  "needs dcm resync"  status and the resynchronization does not start automatically. What should I set to let the resync start auto?
 
Btw:another question. If a new write operation on block operation coming in when the block is in dcm resync state, is the write action blocked or not? 

Is this a bug for vxvm 6.0 ?

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When the repstatus for vvr is :

  Replication status:         resync paused due to network disconnection (dcm resynchronization)
 
I use
>vradmin -g data_dg resync rvg_b
Message from Primary:
VxVM VVR vxrvg INFO V-5-1-16113  SRL to DCM flush is in progress for Rvg rvg_b, resync will start after SRL flush is completed.
 
I see this is a bug that fix in 
 
 
 
 * 2254626 (Tracking ID: 2202710)                                     

     SYMPTOM: Transactions on Rlink are not allowed during SRL to DCM   
     flush.                                                             

     DESCRIPTION: Present implementation doesn’t allow rlink transaction
     to go through if SRL to DCM flush is in progress. As SRL overflows,
     VVR start reading from SRL and mark the dirty regions in           
     corresponding DCMs of data volumes, it is called SRL to DCM flush. 
     During SRL to DCM flush transactions on rlink is not allowed. Time 
     to complete SRL flush depend on SRL size, it could range from      
     minutes to many hours. If user initiate any transaction on rlink   
     then it will hang until SRL flush completes.                       

     RESOLUTION: Changed the code behavior to allow rlink transaction   
     during SRL flush. Fix stops the SRL flush for transaction to go    
     ahead and restart the flush after transaction completion.          

Is there a patch for VRTSvxvm-6.0.000.000-GA_SLES11? 

 

 

Can not create Dynamic group in Volume Replicator.

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Hi,

We have the below details.

1. Server OS - MS Windows 2008 Ent. R2.

2. Application - Oracle

3. Drive Details - C: D: E: (All are in the same Drive where the C drive ).

4. Network Bandwidh - 10 Gbps granated.

5. License Details - a. VRTS STORAGE FOUNDATION 6.0 WIN FOR OS TIER STANDARD EDITION PER SERVER STD LIC EXPRESS BAND S

                              b. VRTS STORAGE FOUNDATION OPTION VOLUME REPLICATOR 6.0 WIN FOR OS TIER STANDARD EDITION PER SERVER    STD   LIC EXPRESS BAND S

 

We have installed the VVR software on both the end.

When trying  to provide the license its giving me the error that license is not support in Windows Ent. R2 server .

We have installed with "keyless" license option.

We have tried to create a dynamic group in the disk but its givien me the error that it can not create a dymanic group with the same disk where C: partition is there (rather system partition).

We have created the dynamic group with the option "Microsoft Managment ..." option. It did created but unable to create the "Replication Data Set".

when creating the RDS its showing me the error that ...

"Error V-108-273-24 Could not find the Dynamic Disk Group. Please make sure the current version of the Dynamic Disk Group is imported. Note that VVR does not support Windows Disk Managment compatible disk group."

 

Please, help me of this above issue.

I am very much new to VVR.

Thanks.

 

 

 

MySql Replication with VVR

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Hi,

A potential customer wishes to know if Mysql database replication is possible with Veritas Volume Replicator. The data is not too big (less than 50GB), but it's very critical.

As I'm not sure about how mysql can be kept consistent during an async (or sync) replication, is it possible?

Thanks.

VR Advisor

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I have to show a demonstration of VR advisor to one of my client. Can somebody please elaborate how can i accomplish this?

I have studied the VR advisor user's guide but i am little confused.

Shall i create a new replication setup in order to test VR advisor?

VR advisor works on windows replication only or on linux replication as well?

 

Any guidance will be highly appreciated

1379939278

VVR Rlink connect fail state

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Hi,

Looking a solution to fix VVR rlink connect fail state at primary location while secondary status is in connect active.

why this happened?

There was abrupt power outage at secondary location and now when all servers at secondary are up, replication is showing in inconsistent state and Rlink is in connect fail state.

 

PostgreSQL replication with Veritas Volume Replicator

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I have 1 Red Hat Enterprise Linux v5 servers (64bits) running PostgreSQL, I would like to replicate it to another server (Twinn machine) throught TCP with VVR, I need to know if somebody had tried this configuration. Anf if there's some consideration to take in mind?

1384879926

How do I verify my data size that will be replicated through VVR

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I need to find a way to figure out the Mb/sec (Mb=Megabits) that will be replicated to my offsite and the pipe size I need in order to stay insync. I have been testing VVR and have all of my setting in place with everything working correctly. But with a 10Mb VPN internet pipe I have the line pegged at 10Mb all the time and am never able to catchup. When I looked at Performance monitor, Physical and Logical disks I am only generating about 4Mb/sec of disk writes which is what is being replicated the the offsite. Am I looking at the wrong data for my replication size needed? Is there a way to verify the Mb/sec that are going to be written the my offsite prior to starting VVR?

 

Thanks for the help.

1386773611

VVR replication stopped

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                   Please help me to solve this situation

replication was stopped. Problem seems to started today morning at 8:00am, due to error in writing data
in 3pp volume of ossrvg of . This caused 3pp volume detachment, which caused the replication to stop with message:

Dec 18 08:00:03  vxio: [ID 494588 kern.notice] NOTICE: VxVM VVR vxio V-5-0-602 Disconnecting rlink to_pallini_ossrvg on rvg
ossrvg: Secondary volume(s) stopped.

atmas1o dmesg
 
Dec 18 08:00:04 atmas1o vxio: [ID 467569 kern.warning] WARNING: VxVM VVR vxio V-5-0-1406 Node 10.40.240.50 disconnected from node 10.40.240.52
Dec 18 08:00:06 atmas1o vxio: [ID 467919 kern.warning] WARNING: VxVM VVR vxio V-5-0-266 Rlink to_metamorphosi_ossrvg disconnected from remote
Dec 18 08:00:06 atmas1o inetd[2436]: [ID 317013 daemon.notice] shell[23328] from 10.40.9.109 820
Dec 18 08:00:07 atmas1o inetd[2436]: [ID 317013 daemon.notice] shell[23448] from 10.40.9.109 817
Dec 18 08:00:07 atmas1o inetd[2436]: [ID 317013 daemon.notice] shell[23548] from 10.40.9.109 814
Dec 18 08:00:09 atmas1o vxio: [ID 584567 kern.notice] NOTICE: VxVM VVR vxio V-5-0-1402 Connected from node 10.40.240.50 to node 10.40.240.52
Dec 18 08:00:09 atmas1o vxio: [ID 910032 kern.notice] NOTICE: VxVM VVR vxio V-5-0-330 Unable to connect to rlink to_metamorphosi_ossrvg on rvg ossrvg: Secondary volume(s) stopped on remote
Dec 18 08:00:10 atmas1o inetd[2436]: [ID 317013 daemon.notice] shell[24521] from 10.40.9.109 811
 
 
atmas2o dmesg
 
Dec 18 08:00:02 atmas2o vxio: [ID 222684 kern.warning] WARNING: VxVM VVR vxio V-5-0-0 Volume 3pp block 12116624: Uncorrectable write error
Dec 18 08:00:02 atmas2o vxio: [ID 222684 kern.warning] WARNING: VxVM VVR vxio V-5-0-0 Volume 3pp block 4321392: Uncorrectable write error
Dec 18 08:00:02 atmas2o vxio: [ID 222684 kern.warning] WARNING: VxVM VVR vxio V-5-0-0 Volume 3pp block 6668080: Uncorrectable write error
Dec 18 08:00:03 atmas2o vxio: [ID 494588 kern.notice] NOTICE: VxVM VVR vxio V-5-0-602 Disconnecting rlink to_pallini_ossrvg on rvg ossrvg: Secondary volume(s) stopped
Dec 18 08:00:03 atmas2o last message repeated 1 time
Dec 18 08:00:03 atmas2o vxio: [ID 467919 kern.warning] WARNING: VxVM VVR vxio V-5-0-266 Rlink to_pallini_ossrvg disconnected from remote
Dec 18 08:00:07 atmas2o vxio: [ID 467569 kern.warning] WARNING: VxVM VVR vxio V-5-0-1406 Node 10.40.240.52 disconnected from node 10.40.240.50
Dec 18 08:00:10 atmas2o vxio: [ID 584567 kern.notice] NOTICE: VxVM VVR vxio V-5-0-1402 Connected from node 10.40.240.52 to node 10.40.240.50
 
 
 
atmas2o{root} #: vxprint -thf | grep -i 3pp
v 3pp ossrvg DETACHED DETACH 51200000 SELECT - fsgen
pl 3pp-01 3pp ENABLED ACTIVE 51200000 CONCAT - RW
sd disk2-26 3pp-01 disk2 1367605248 51200000 0 c1t40d0 ENA
pl 3pp-02 3pp ENABLED ACTIVE 51200000 CONCAT - RW
sd disk2mirr-01 3pp-02 disk2mirr 0 51200000 0 c3t40d0 ENA
pl 3pp-03 3pp ENABLED ACTIVE LOGONLY CONCAT - RW
sd osssrldk1-25 3pp-03 osssrldk1 419437744 512 LOG c1t40d1 ENA
pl 3pp-04 3pp ENABLED ACTIVE LOGONLY CONCAT - RW
sd osssrldk1m-25 3pp-04 osssrldk1m 419437600 512 LOG c3t40d1 EN
 
 
partial output of iostat -E of atmas2o
 
ssd0 Soft Errors: 0 Hard Errors: 5 Transport Errors: 0
Vendor: SUN Product: StorEdge 3510 Revision: 421F Serial No:
Size: 439.62GB <439624925184 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 5 Recoverable: 0
Illegal Request: 1 Predictive Failure Analysis: 0
ssd1 Soft Errors: 0 Hard Errors: 5 Transport Errors: 5
Vendor: SUN Product: StorEdge 3510 Revision: 421F Serial No:
Size: 732.71GB <732708208640 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 5 Recoverable: 0
Illegal Request: 1 Predictive Failure Analysis: 0
ssd2 Soft Errors: 0 Hard Errors: 4 Transport Errors: 0
Vendor: SUN Product: StorEdge 3510 Revision: 421F Serial No:
Size: 439.62GB <439624925184 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 4 Recoverable: 0
Illegal Request: 1 Predictive Failure Analysis: 0
ssd3 Soft Errors: 0 Hard Errors: 4 Transport Errors: 4
Vendor: SUN Product: StorEdge 3510 Revision: 421F Serial No:
Size: 732.71GB <732708208640 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 4 Recoverable: 0
Illegal Request: 1 Predictive Failure Analysis: 0
st2 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: SEAGATE Product: DAT DAT72-000 Revision: C0C0 Serial No:

root@atmas1o> vradmin -g ossdg repstatus ossrvg
Replicated Data Set: ossrvg
Primary:
  Host name: pallini-ossrvg
  RVG name: ossrvg
  DG name: ossdg
  RVG state: enabled for I/O
  Data volumes: 24
  VSets: 0
  SRL name: oss_srl_vol
  SRL size: 200.00 G
  Total secondaries: 1
 
Secondary:
  Host name: metamorphosi-ossrvg
  RVG name: ossrvg
  DG name: ossdg
  Data status: inconsistent
  Replication status: paused due to network disconnection
  Current mode: asynchronous
  Logging to: SRL
  Timestamp Information: N/A
 
 

volume in needysnc state

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I need a solution

 

 

  there are few  volumes in RVG that are in Need sync state as shown below

 

  export       ossrvg       ENABLED  NEEDSYNC 83968000 SELECT    -        fsgen
pl export-01    export       ENABLED  ACTIVE   83968000 CONCAT    -        RW
sd disk2-10     export-01    disk2    316928000 83968000 0        c1t40d0  ENA
pl export-02    export       ENABLED  ACTIVE   83968000 CONCAT    -        RW
sd disk2mirr-11 export-02    disk2mirr 368128000 83968000 0       c3t40d0  ENA
pl export-03    export       ENABLED  ACTIVE   LOGONLY  CONCAT    -        RW
sd osssrldk1-14 export-03    osssrldk1 419431520 512    LOG       c1t40d1  ENA
pl export-04    export       ENABLED  ACTIVE   LOGONLY  CONCAT    -        RW
sd osssrldk1m-10 export-04   osssrldk1m 419432384 512   LOG       c3t40d1  ENA
 

how can we bring it to Active ?

 

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