Re: I like the new RDX docking station... Just sayin

What makes me curious about RDX is how much reliability the disks have.
Disk drives have various failure modes (controllers, bad sectors, etc) and
depending on how the disk is written it might not have the same ECC that a
tape has...
Are there any good comparisons?


On Fri, May 23, 2014 at 12:13 PM, Steinmetz, Paul <PSteinmetz@xxxxxxxxxx>wrote:

In releases V6R1M1 and above, Removable Disk Cartridge (RDX) on Removable
Mass Storage (RMS) devices can be used with BRMS.

BRMS restrictions for optical devices apply to RDX, see the
Restrictions/Requirements section on the Optical Wiki page for more
information.


https://www.ibm.com/developerworks/community/wikis/home?lang=en#!/wiki/IBM%20Backup%2C%20Recovery%20and%20Media%20Services%20%28BRMS%29%20for%20i/page/Optical


Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
DrFranken
Sent: Friday, May 23, 2014 10:48 AM
To: Midrange Systems Technical Discussion
Subject: Re: I like the new RDX docking station... Just sayin

Same way you do with tape except use DUPOPT instead of DUPTAP.

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 5/23/2014 10:42 AM, Steinmetz, Paul wrote:

How would you create a DUP of an RDX for off-site DR?

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
DrFranken
Sent: Friday, May 23, 2014 10:29 AM
To: Midrange Systems Technical Discussion
Subject: Re: I like the new RDX docking station... Just sayin

Comparing RDX cartridge prices to LTO3 or LTO4 tapes you won't like. RDX

is a lot more money for sure one to one.

--BUT--

With Power8 for example there is no longer an internal tape option. So

you'll need purchase a SAS card, SAS cable, and an LTO drive such as the
TS2900. You will be out a pretty large pile of RDX cartridges just to get
the LTO drive! In comparison the RDX drive itself is almost Free!

So for the small shops RDX will be much more economical than LTO.

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 5/22/2014 3:44 PM, Richard Schoen wrote:

I get some pretty impressive backup speeds on my network based LTO-5

drives.

Besides 1.5/3 Terabyte tapes are only $26

I think the RDX cartridges are still relatively expensive when compared

to a regular hard drive in a removable dock, but it's a different horse as
well from what it sounds like.

Don't suppose a BlackX USB Dock can hook up to the I nowadays can it ?
:-)

Regards,
Richard Schoen
RJS Software Systems Inc.
Where Information Meets Innovation
Document Management, Workflow, Report Delivery, Forms and Business
Intelligence
Email: richard@xxxxxxxxxxxxxxx
Web Site: http://www.rjssoftware.com
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message: 1
date: Thu, 22 May 2014 14:50:42 -0400
from: rob@xxxxxxxxx
subject: RE: I like the new RDX docking station... Just sayin

Personally I think comparing to the times of saving to save files isn't

too impressive.

A decent LTO3 or above tape drive, with enough processor to drive it,

will often blow the doors off of saving to save files.

This isn't 1970. Disk isn't always faster than tape. Especially when

you're using the same disk controller, set of arms, etc to write the data
as are reading the data.

Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600

Mail to: 2505 Dekko Drive

Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com

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