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- Newsgroups: comp.os.vms
- Path: sparky!uunet!sun-barr!ames!elroy.jpl.nasa.gov!nntp-server.caltech.edu!SOL1.GPS.CALTECH.EDU!CARL
- From: carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick)
- Subject: RE: HEADERFULL messages when copying 2xRA81 to 1xRF72.
- Message-ID: <1992Sep5.201557.14244@cco.caltech.edu>
- Sender: news@cco.caltech.edu
- Nntp-Posting-Host: sol1.gps.caltech.edu
- Reply-To: carl@SOL1.GPS.CALTECH.EDU
- Organization: HST Wide Field/Planetary Camera
- References: <9209051853.AA07210@ucbvax.Berkeley.EDU>
- Date: Sat, 5 Sep 1992 20:15:57 GMT
- Lines: 34
-
- In article <9209051853.AA07210@ucbvax.Berkeley.EDU>, moeller@gwdgv1.dnet.gwdg.de ("GWDGV1::MOELLER") writes:
- >Brian System Manager <SYSTEM%CLUSTER.POLY-NORTH-LONDON.AC.UK@IB.RL.AC.UK>
- >writes:
- >
- >> Problems once again! We (We? I mean muggins here) are in the middle of
- >> swapping our old CI based 8000 cluster with RA81 disks for a new 4500 (x4)
- >> RF72 LAVC VMS 5.5-1 cluster. I've got a problem copying some disks with
- >> HEADERFULL messages (detailed below), and basically need to know how to
- >> locate the headers used / headers free values on a disk volume.
- >>[...]
- >
- >When you see HEADERFUL while creating files on a disk, this usually
- >means that the index file's (INDEXF.SYS) file header is full.
- >INDEXF.SYS is (essentially) used to hold the file headers -
- >at least one block per regular file.
- >Opposed to normal files, INDEXF.SYS can have only a single file
- >header, which is sufficient to describe some 40-odd extents.
-
- Actually, it's either 52 or 53 extents; I forget which.
-
- >INDEXF.SYS starts with a single extent
-
- No, it starts with at least 4 extents. The first extent holds the boot block
- and the home block of the disk. The second extent holds the backup home
- block. The third extent holds the backup index file header, and the fourth
- extent holds the index file bitmap and at least the first 16 file headers.
- --------------------------------------------------------------------------------
- Carl J Lydick | INTERnet: CARL@SOL1.GPS.CALTECH.EDU | NSI/HEPnet: SOL1::CARL
-
- Disclaimer: Hey, I understand VAXen and VMS. That's what I get paid for. My
- understanding of astronomy is purely at the amateur level (or below). So
- unless what I'm saying is directly related to VAX/VMS, don't hold me or my
- organization responsible for it. If it IS related to VAX/VMS, you can try to
- hold me responsible for it, but my organization had nothing to do with it.
-