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GWDR design for 60 PO servers

gehorvath
Hello Forum Members,
I have to design a GW backup solution with GroupWise Disaster Recovery 18 for my customer. Please read my config and help me answer the questions on the bottom of the post.

Thanks!
Gellert

Environment:
GW 2018 SP1 on SLES11 SP4 on vmware
Two datacenters connected with 1 Gbit LAN. Datacenter has 10Gbit ethernet connection inside.
There are about 30 GW PO servers in each datacenter, so 60 GW PO servers in total.
Each GW PO server has a 1 TB mail volume on SAN, so there are maximum 30 TB of data to be backed up on each datacenter. Total sum of 60 TB.
There are about 30 domains spread on the GW PO servers.

Expectations:
The backup infrastructure should be separated from the live infrastructure. This means that GWDR should have separate servers (not on the vmware where the live servers are) and separate storage (not the storage where the live data is). Customer is willing to buy new hardware.
Backups should be stored in two places, aka two copies from each backup.
Daily backups during the nights, keep (at least) 7 days of backup. Keep 1 backup from each month for a year, and yearly backups for 10 years. (aka GFS rotation)

As far as I see:
Customer will need at least two new servers, one for each site. 10 Gbit ethernet is preferred for LAN connectivity, and SAN adapters for the new storage.
They also need a two new storages, one for each site. NearLine disks, big capacity storage, optimised for write operations. According to documentation 2,5 times the size of the online database for 14 days of backup, so 30 TB * 2,5 = 75 TB at least for one side. Then they would like to cross replicate the backups, so one side should have at least 150 GB. ( 20% free for optimal performance, so 180 TB)

As far as I know, one GWDR instance can have a maximum of 40 backup jobs configured. Is this limitation still there? How many simultaneous backups can run? Are these two servers enough to do a backup of every PO and domain within a 4 hour backup window or should I add more GWDR servers to speed up the backup? How many CPU and memory should have one GWDR server? I plan to add at least 16 GB and 4 cores so it can run as a DR server for at least two GW POA servers.
  • 0
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  • 0  
    On 23.07.2018 14:34, gehorvath wrote:

    >
    > As far as I know, one GWDR instance can have a maximum of 40 backup jobs
    > configured. Is this limitation still there?

    I don't know, but I don't think that plays a role here.

    > How many simultaneous
    > backups can run? Are these two servers enough to do a backup of every PO
    > and domain within a 4 hour backup window
    Let's do some math here. You say there's a 1GB line between the two
    places, and a 4 hour backup window.

    Even calculating with the theoretical max speed of the line, that
    equates to max 1,2TB of data that can be transferred during the backup
    window. The reality, also due to the nature of groupwise data will be
    much less, I reckon not more than 500GB. Most likely, that won't even be
    enough time to backup the (always changing) user and message databases.

    I can't see how this is going to work, or I'm misunderstanding the setup.

    CU,
    --
    Massimo Rosen
    Micro Focus Knowledge Partner
    No emails please!
    http://www.cfc-it.de
  • 0 in reply to   
    Hello Massimo,

    I've downloaded and installed a trial version of GWDR, and know I think I know why the 1 Gbit connection between the two datacenters is a problem. As far as I see, the offsite backup is a second backup made from the original PO. So the offiste backup is not a copy of the first backup, but a new backup made to a different destination. And this backup has to travel over the 1 Gbit link within 4 hours, which might be a problem. Or at least in the past, because there was an upgrade last week, so the line is now thicker. But correct me if I am wrong. I couldn't find any documentation about this feature. Creating a copy of the first backup to an offsite location with Reload would be better, because this wouldn't use the online servers, and there were a much bigger time window. Is this possible?

    One instance of GWDR can have a maximum of 20 configured jobs. There are 77 domains and post offices, so I need at least 4 GWDR instances for the first backup and 4 another instances for the offsite backup. A total of 8 instances are needed. Am I right?

    Can Reload for Retain run on the same hardware as Reload? If yes, then I don't need a separate hardware for R4R.

    Thanks,
    Gellért
  • 0 in reply to 
    On Thu, 13 Sep 2018 09:04:02 GMT, gehorvath
    <gehorvath@no-mx.forums.microfocus.com> wrote:

    >
    >Hello Massimo,
    >
    >I've downloaded and installed a trial version of GWDR, and know I think
    >I know why the 1 Gbit connection between the two datacenters is a
    >problem. As far as I see, the offsite backup is a second backup made
    >from the original PO. So the offiste backup is not a copy of the first
    >backup, but a new backup made to a different destination. And this
    >backup has to travel over the 1 Gbit link within 4 hours, which might be
    >a problem. Or at least in the past, because there was an upgrade last
    >week, so the line is now thicker. But correct me if I am wrong. I
    >couldn't find any documentation about this feature. Creating a copy of
    >the first backup to an offsite location with Reload would be better,
    >because this wouldn't use the online servers, and there were a much
    >bigger time window. Is this possible?

    Yes. Reload can push a profile (backup) to another Reload server.

    --
    Ken
    Knowledge Partner

    Create and vote for enhancements!
    https://www.microfocus.com/products/enhancement-request.html
  • 0 in reply to 
    As I've already mentioned, I've downloaded and installed a trial copy of GWDR. I've configured 5 test collector profiles, to back up 5 POs, but they won't start as scheduled. I can start to job manually and it finishes successful, and the intra day jobs starts also. Is this the limitation of the trial version, or am I missing something?

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