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- From: mcguire@selway.umt.edu (Charles J McGuire)
- Subject: Re: LEDs flash 223 and 229 when installing new disk. Any advise?
- Message-ID: <1992Nov23.222910.29779@selway.umt.edu>
- Organization: University of Montana
- References: <1992Nov22.192730.16039@ornl.gov> <1992Nov23.031709.9787@umbc3.umbc.edu> <1992Nov23.163113.4977@ncar.ucar.edu>
- Distribution: usa
- Date: Mon, 23 Nov 1992 22:29:10 GMT
- Lines: 48
-
- In article <1992Nov23.163113.4977@ncar.ucar.edu> fredrick@acd.ucar.edu (Timothy Fredrick) writes:
- >In article <1992Nov23.031709.9787@umbc3.umbc.edu> payter@umbc4.umbc.edu (Nightcrawler) writes:
- >>In article <1992Nov22.192730.16039@ornl.gov> zhang@dmnds.ms.ornl.gov (Xiaoguang Zhang) writes:
- >>++ I have seen the alternating 223 and 229 on LED when I tried to add
- >>++ an external disk whose SCSI id was not changed and was 0 which conflicted
- >>++ with one of the internal drives. How did you connect the new drive? I
- >>++ would not try to connect a new SCSI device while the machine is on. You
- >>++ never know what will happen. Hope my info helps.
- >>
- >> The 223-9 sequence is a normal-mode attempt to configure SCSI devices. For
- >>each SCSI I/O controller card installed in your machine, you can have, at most,
- >>seven (7) SCSI'ed devices. Each device on a given card must have a unique id
- >>(address), 0 - 6. The address 7 cannot be used. Why? I dunno, but that's it.
- >>To solve your problem, just turn the little red (or blue) dial on the back of
- >>the new drive to a number not already used. It sounds like you are already
- >>aware of that, though, since you said the addresses conflicted. Don't worry
- >>about data integrity while changing the device's SCSI address. Heck, I've even
- >>attached tape and disk drives while the machine is on, commanded cfgmgr, and
- >>voila!, more DASD! ;-)
- >
- >Thanks for these postings. My problem, however, is not the SCSI address.
- >I have tried two different addresses. And actually, the disk appears to work
- >fine up until I allocate it's space to filesystems. With the disk in the
- >system and configured as part of rootvg, I can reboot many times without
- >incident. The symptom of the flashing 223-9 sequence only occurs after I
- >allocate the space and then reboot.
- >
- >Some have suggested it is an AIX bug involving large external disk drives
- >greater than 1GB. Can someone confirm this? Would it be a bug that would
- >be fixed by AIX 3.2.3? We are running AIX 3.2.0.
- >
- >Another person suggested I need to reset the NVRAM by removing the battery.
- >Is there a way to reset the NVRAM without removing the battery?
- >
- There are no bugs that I'm aware of on the size of an external drive. So
- far I have 1.2G, 1.5G and 2.4G extern drives on AIX 3.2 systems with no
- problems. Some systems have several 2.4G external drives. I've run them
- all on 220's, 320's, 340's, 350's and 550's. I strongly advise against
- messing with the scsi bus while the system is running.
-
- *************************************************************************
- ( Charlie McGuire | Tel. : (406) 243-4618 )
- ( Research Sys Mgr | Fax : (406) 243-4076 )
- ( The University of Montana | )
- ( Computer Science Dept | E-Mail: mcguire@huckle.cs.umt.edu )
- ( SS409 | )
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