SUMMARY: solaris 2.5.1 tmpfs file system size limit

From: Cathy Hargrave (
Date: Tue Oct 07 1997 - 09:38:35 CDT


the original question was:

        under solaris 2.5.1, what is the size limitation for a
        tmpfs file system when formating a disk?

the size limitation is 2 Gby.

from john dimarco:

> In 2.5.1, tmpfs size in bytes is stored in an unsigned int --
> that's 2GB max, so tmpfs'es larger than 2GB are out.

casper dik provided the following information:

> It's actually 3.75 GB (depending on patch level)

i checked, and the 2.5.1 recommended patches, and 104259-03
don't address that problem. these were the only patches for
solaris 2.5.1 that i had access to.

thanks to the following people who responded:

Charlie Mengler <>
John DiMarco <>
Danny Johnson <>
Rahul Roy <roy@bluestone.COM>
Richard Dows <>
Andrew Moffat <>
Mark Hargrave <>
Dieter Gobbers <>
Casper Dik <casper@holland.Sun.COM>
Birger A. Wathne <birger@Vest.Sdata.No>
Glenn Satchell <>
Charlie Mengler <>


Cathy L. Hargrave Smith                 phone: (972) 466-7599
IT Technical Services 			e-mail:

>> opinions expressed here are my own, and do not reflect those of sgs-thomson. << --------------------------------------------------------------

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