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flarcreate on Sun Blade 150 leaves out SunPCi III filesystems (largefiles)

Issue:

When I create a flash archive (flarcreate) for our customer's Sun Blade 150 system, if I include the SunPCi III disk drive image files, these two files will fail out. The flar will be created and useable - except for the SunPCi image files are left out.

H/W I'm using:

Sun Blade 150 with two (2) 40G IDE HD's

Sun PCi III Card

Special Files:

2K.diskimage - 25G uncompressed - Win2K "C:\" drive

2KD.diskimage - 4G uncompressed - Win2K "D:\" drive

Question:

Why does flarcreate have trouble with these two files? is it because they are actually file systems? Or because they are largefiles?

Is there an alternate backup procedure when using a system (like Sun Blade 150) with a SunPci III card?

Thank you,

Brian Jester

Maxim System Inc.

[829 byte] By [BrianJester123] at [2007-11-26 10:47:43]
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# 1

Hello Brian,

A Flash Archive is, in a nutshell, a compressed cpio archive with some header information thrown in. As such, it's subject to the limitations of cpio, one of which is a limit on the size of files (it's either 2GB or 4GB, can't remember which). To be more specific, cpio can create an archive file of arbitrary size, it just can't put files of greater than 2( or was it 4? )GB into that archive. Hope that helps!

My suggestion would be to try compressing your diskimages before creating the flash archive. They won't compress any further when you go ahead and make the archive, but they might get you under the cpio limitations. Then you just have to remember to uncompress after unrolling your flash archive.

Say hello to A and V for me :)

regards,

Chuck

patchet at 2007-7-7 2:59:58 > top of Java-index,General,Sys Admin Best Practices...
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