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AhsayUBS vs CentOS; Migration from Windows Server to Linux/Unix

Postby millhaus » Fri Jan 10, 2014 11:06 pm

Hello folks,

we are currently thinking about migrating our productive OBS from Windows Server 2008R2 to CentOS or AhsayUBS because of the licence costs for MS Windows Server.
Checking the Ahsay compatibility list „Ahsay Software Compatibility List (SCL) for version 6.3 or above“ Article Number: 2323, we think only possible operating systems for OBS would be either CentOS or AhsayUBS.

1. Which operating system would you prefer? CentOS or AhsayUBS or total different one? Pros, cons?
a. AhsayUBS:
+ Quick installation
+ iSCSI initiator already onboard
+ ZFS file system seems to be a „rockstar“
+ Stable Unix machine FreeBSD
- No knowhow about administration of Unix/BSD
- What about the packet-management? Do we upgrade/update the OS regularly via packet-management or is there a built-in Ahsay-routine?
- Are OS updates/upgrades for general FreeBSD also compatible with AhsayUBS?
- 100 USD costs per installation?
b. CentOS:
+ Know how about administration of Linux (mainly Debian)
+ Huge wide support for CentOS
+ CentOS should be stable using RHEL-technique?
- More effort/time necessary getting the OS running for AhsayOBS

2. AhsayUBS: Does AhsayUBS really cost (100 USD) if we already have AhsayOBM CALs and an already licensed AhsayOBS?

3. Possible issues we might be confronted with:
Currently we use
• 2008R2 x64 virtualized with Citrix XenServer 5.6 SP2
• iSCSI Initiator connected to QNAP NAS/SAN LUNs
• The disks are NTFS-formatted (GPT)  how would you try to migrate the NTFS-disks? Would you stay with NTFS or try to convert/ or use fresh ext/ZFS-disks?
• Many routine jobs from the task scheduler need to be migrated from Batch/Powershell to Shell-scripts, like: Robocopy to rsync and other tasks

Thanks
millhaus
 
Posts: 279
Joined: Tue Oct 04, 2011 9:57 pm

Postby PG » Sun Jan 12, 2014 5:12 am

We used Debian on ext4 for many years, it was rock solid. Wish we had stayed on it, unfortunately I don't get to make all the decisions :)
PG
 
Posts: 1023
Joined: Thu Feb 18, 2010 5:57 am

Postby millhaus » Mon Jan 13, 2014 4:42 pm

PG wrote:We used Debian on ext4 for many years, it was rock solid. Wish we had stayed on it, unfortunately I don't get to make all the decisions :)

^^
And now you do use? CentOS? RHEL?

What would you do if you do have NTFS drives on the NAS-LUNs:
Would you try to still use them via NTFS driver for Linux/Unix or
is it possible to convert the NTFS disks to ext4 without data-loss
or do you recommend a fresh-formatted ext4/ZFS drive?

And has/or is anyone productively using AhsayUBS? Any experiences so far?
millhaus
 
Posts: 279
Joined: Tue Oct 04, 2011 9:57 pm

Postby millhaus » Mon Jan 13, 2014 10:30 pm

fyi:

I have found at least one software which is probably capable
of the conversion of a NTFS to ext2/3. Then I would need to convert from ext2/3 to ext4 with tune2fs.

http://anyfs-tools.sf.net/

Therefore it seems we do have following possibilities:
method a:
-conversion without data loss (if possible, depends on the source and destination file systems)
method b:
-via backup/another drive where to move the source data temporarily (probably the safest method)
method c:
-shrinking the source disk. if the source disk has some free space left, you could shrink it, format the free space with the target filesystem and move until all data has been copied and the target filesystem has its final size
method d:
-workaround via target filesystem driver: you stay on the old source filesystem and use an additional driver to manage the data (if the target OS supports the source filesystem)
millhaus
 
Posts: 279
Joined: Tue Oct 04, 2011 9:57 pm

Postby PG » Tue Jan 14, 2014 8:55 am

millhaus wrote:
PG wrote:We used Debian on ext4 for many years, it was rock solid. Wish we had stayed on it, unfortunately I don't get to make all the decisions :)

^^
And now you do use? CentOS? RHEL?

What would you do if you do have NTFS drives on the NAS-LUNs:
Would you try to still use them via NTFS driver for Linux/Unix or
is it possible to convert the NTFS disks to ext4 without data-loss
or do you recommend a fresh-formatted ext4/ZFS drive?

And has/or is anyone productively using AhsayUBS? Any experiences so far?


Now Use Windows :(

Nothing works quite as well with NTFS like Windows, so convert your filesystems :)
PG
 
Posts: 1023
Joined: Thu Feb 18, 2010 5:57 am

Re: AhsayUBS vs CentOS; Migration from Windows Server to Linux/Unix

Postby InfolabCloud » Sat Nov 08, 2014 11:19 pm

millhaus wrote:Hello folks,

we are currently thinking about migrating our productive OBS from Windows Server 2008R2 to CentOS or AhsayUBS because of the licence costs for MS Windows Server.
Checking the Ahsay compatibility list „Ahsay Software Compatibility List (SCL) for version 6.3 or above“ Article Number: 2323, we think only possible operating systems for OBS would be either CentOS or AhsayUBS.

1. Which operating system would you prefer? CentOS or AhsayUBS or total different one? Pros, cons?
a. AhsayUBS:
+ Quick installation
+ iSCSI initiator already onboard
+ ZFS file system seems to be a „rockstar“
+ Stable Unix machine FreeBSD
- No knowhow about administration of Unix/BSD
- What about the packet-management? Do we upgrade/update the OS regularly via packet-management or is there a built-in Ahsay-routine?
- Are OS updates/upgrades for general FreeBSD also compatible with AhsayUBS?
- 100 USD costs per installation?
b. CentOS:
+ Know how about administration of Linux (mainly Debian)
+ Huge wide support for CentOS
+ CentOS should be stable using RHEL-technique?
- More effort/time necessary getting the OS running for AhsayOBS

2. AhsayUBS: Does AhsayUBS really cost (100 USD) if we already have AhsayOBM CALs and an already licensed AhsayOBS?

3. Possible issues we might be confronted with:
Currently we use
• 2008R2 x64 virtualized with Citrix XenServer 5.6 SP2
• iSCSI Initiator connected to QNAP NAS/SAN LUNs
• The disks are NTFS-formatted (GPT)  how would you try to migrate the NTFS-disks? Would you stay with NTFS or try to convert/ or use fresh ext/ZFS-disks?
• Many routine jobs from the task scheduler need to be migrated from Batch/Powershell to Shell-scripts, like: Robocopy to rsync and other tasks

Thanks



HI, we have the very same questions, what you have decided?
I will appreciate very much your feedback.
InfolabCloud
 
Posts: 10
Joined: Thu Jun 21, 2012 12:04 am


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