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- From: lampi@polari.online.com
- Newsgroups: comp.sys.hp
- Subject: Re: Disk Array & 2GB HP-UX limit
- Summary: This is a bogus limit IMHO
- Message-ID: <1992Sep12.005322.3016@polari>
- Date: 12 Sep 92 00:53:22 GMT
- References: <51980002@hpsgm2.sgp.hp.com> <BuBwMI.MFC@cup.hp.com>
- Organization: R Squared, Redmond, WA (206) 883-3116
- Lines: 36
-
- In article <BuBwMI.MFC@cup.hp.com> markd@cup.hp.com (Mark_Donohoe) writes:
- >Raj PUBALA (klitd@hpsgm2.sgp.hp.com) wrote:
- >: Looking at the HP Disk Arrays data sheet, I see that with four disk drives
- >: in the array, we offer 5.4 GB of storage.
- >:
- >: I also read about the LVM (Logical Volume Manager) in HP-UX 9.0, which
- >: says the size of a LV is still limited to 2GB which is the HP-UX
- >: system limitation.
- >:
- >: Can anybody tell me whether HP Disk Arrays management can overcome this
- >: 2GB HP-UX system limitation?
- >:
- >: If not, is there any suggestion on how to handle a file system ( which
- >: has no sub-directory ) which will grow beyond 2GB?
- >:
- >
- >Yes, I have configured the LVM to be a 3.9Gig file system on HP-UX
- >9.0. BTW, 4gig is the bigest that HP-UX can support at this time,
- >(you actually end up with a little less than 4 gig because of LVM and
- >other over head.) It will take 64 bit pointers to address more in the
- >file system.
- >
- Why would it take 64 bit pointers to address >4GB file systems? After all,
- we're not necessarily talking about >4GB *files* (which would require
- such pointers), we're talking about >4GB *volumes*. It's really a stupid
- limitation that should have nothing to do with the 32 bit limit of
- pointers. After all, we're not talking about a pointer based from the
- beginning of the logical volume when we address the contents of a given file.
-
- Or are we? :-)
-
- --
- -----
- +-+ Michael Lampi lampi@polari.online.com
- |R| R Squared 16398 NE 85th St., Suite 101, Redmond, WA 98052
- +-+ (206) 883-3116 fax (206) 883-2676
-