Long Distance UNIX (Solaris) Cloning ? Post: 302157172

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Top Forums UNIX for Dummies Questions & Answers Long Distance UNIX (Solaris) Cloning ? Post 302157172 by HikerLT on Thursday 10th of January 2008 09:36:06 AM

01-10-2008

Registered User

Long Distance UNIX (Solaris) Cloning ?

Need some advice and guidance for this UNIX beginner. Due to downsizing I have inherited the SysAdmin duties..(sigh). Please excuse and forgive me if I use the wrong terms below....

Situation:

We have UNIX ( Solaris 7/8/9( it varies) on Sun Ultra 10's) servers located at several global locations - in Malaysia, Mexico, and South Carolina. We access these from our New England location via the corporate network, thru firewalls located at these sites.

At each of the sites, we have a UNIX server ( Ultra 10 running Solaris) that acts as a gateway server, that bridges from the corporate network, to a isolated "Test Engineering" network within the remote factory. Hanging off of this "Test Eng Network", are more Ultra-10 Servers, used as NMS Network Management System servers to run Systems level traffic tests on test equipment.

Goal: Is to make duplicate clones of each of these servers hard drives, so if ( and When) they die and crash, we can rapidly power up and attach the cloned server ( with duplicate hard drives) and prevent downtime.

Problem:
1) These Ultra-10's have 2 hard drives in them, attached to the IDE bus connections - thus no way to attach a new fresh drive and do a "DD" duplication, as both IDE connections are in use..

2) Due to the remote location , and lack of expertise in IT capability there, we also can't rely on the local people to dismantle and attach
the fresh drive to do a DD clone anyways - too risky.

3) We want to avoid powering down these servers, as we have had problems in the past of them rebooting without hard drive crashes due to their age.

My Question:

Is there a way to make a copy of each hard drive, by doing a copy over the network?. Would this involve partitioning the fresh drive( as an attachment 2nd drive on a 1 drive Solaris system in my lab) to match the same partitions as the ones in the remote global location that we want to copy , and then copying all of the files in each partition/directory.??

Or is there a way to do the equivalent of a DD cloning operation between 2 systems that are on a global network...
??

Any ideas or advice is appreciated.!!

HikerLT

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LEARN ABOUT NETBSD

viaide

VIAIDE(4)						   BSD Kernel Interfaces Manual 						 VIAIDE(4)

NAME

     viaide -- AMD, NVIDIA and VIA IDE disk controllers driver

SYNOPSIS

     viaide* at pci? dev ? function ? flags 0x0000
     options PCIIDE_AMD756_ENABLEDMA

DESCRIPTION

     The viaide driver supports the following IDE controllers and provides the interface with the hardware for the ata driver:
	   -   Advanced Micro Devices AMD-756, 766, 768 and CS5536 IDE Controllers
	   -   NVIDIA nForce, nForce2, nForce2 400, nForce3, nForce3 250, nForce4, MCP04, MCP55, MCP61, MCP65, MCP67 IDE and SATA Controllers.
	   -   VIA Technologies VT82C586, VT82C586A, VT82C596A, VT82C686A, VT8233A, VT8235, VT8237/VT8237R IDE Controllers, VT6421 Serial RAID
	       Controller and CX700 IDE Controller.

     The 0x0002 flag forces the viaide driver to disable DMA on chipsets for which DMA would normally be enabled.  This can be used as a debugging
     aid, or to work around problems where the IDE controller is wired up to the system incorrectly.

SEE ALSO

     ata(4), atapi(4), intro(4), pci(4), pciide(4), wd(4), wdc(4)

NOTES

     Drives on the VT6421 Serial RAID Controller can only be accessed after they have been configured into RAID or JBOD sets via its BIOS.  It is
     also inaptly named as it has both SATA and PATA interfaces.

BUGS

     The AMD756 chip revision D2 has a bug affecting DMA (but not Ultra-DMA) modes.  The workaround documented by AMD is to not use DMA on any
     drive which does not support Ultra-DMA modes.  This does not appear to be necessary on all drives, the PCIIDE_AMD756_ENABLEDMA option can be
     used to force multiword DMA on the buggy revisions.  Multiword DMA can eventually be disabled on a per-drive basis with config flags, see
     wd(4).  The bug, if triggered, will cause a total system hang.

     The timings used for the PIO and DMA modes for controllers listed above are for a PCI bus running at 30 or 33 MHz.  This driver may not work
     properly on overclocked systems.

BSD
								  August 31, 2007							       BSD