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HP SureStore CD-ROM Servers - Disc and Drive Access Problems

CD-ROM or DVD-ROM read or drive problem
If you cannot see or access the CD in a CD-ROM drive and you see the ON/BUSY indicator flashing 5 times in a series, then open and close the CD tray door using the Stop/Eject button. Wait to see if the Disc goes on and ON/BUSY goes off; you should then have access.
On both CD- and DVD-ROM drives, try switching off the server, waiting 10 seconds, and then switching it on again (power cycling); then, wait for the self-test to complete and the Status to be solid green.
Drive access problem
If you cannot see a drive on the network but you can see the server on the network, then use the procedure for SCSI problems, below.
The comprehensive SCSI diagnosis procedure
  1. See if you can access the server’s web page. If you cannot, then proceed to the next step. If you can reach the server, then:
    1. Under the Administration tab, click This Server and click the picture for each device in the tower. Note any problems shown for a particular drive and check that drive first (before the other drives) when you get to step 2, below.
    2. Switch off the server, wait 10 seconds, and then switch it on again (power cycle). Wait for the self-test process to complete.
      If problems have not been corrected, proceed to the next step.
  2. Check the LEDs on all CD/DVD-ROM drives for error conditions.
    If one or some of the drives show an error condition, remove the drive. Do step 1b above and again check the LEDs on the server and all drives. If the error has been corrected, then the drive module is faulty and must be replaced. If the error persists, then proceed to the next step.
    If you show no errors on your drives or have only DVD-ROM drives, proceed to the next step.
  3. Pull out the server module far enough to disconnect only the SCSI bus--the long flat ribbon cable.
    Do step 1b above and check the LEDs on the server and all drives. If the error has been corrected, proceed to the next step. If the error persists, then the server module is faulty and must be replaced.
  4. Switch off the server. Remove all drives (CD-ROM, DVD-ROM, and hard disk drives) from the tower. Making sure that the power is still off, reattach the SCSI connection--the long flat ribbon cable--to the server. Switch on the server. Wait for the self-test process to complete and check the following:
    • If the server’s SCSI LED is normal, then the tower is working, and a drive may be faulty; proceed to the next step.
    • If the server’s SCSI LED is not normal, then the tower may be faulty and need replacement.
  5. Reinstall the drive modules, one by one, by switching off power, installing the drive in the tower, switching on power, inserting a disc, attempting to access it, and checking previous LED error conditions. The drive that reintroduces the error condition is faulty and must be replaced.
      note:
    If you have extended your server with an expansion tower and you can access only the drives on that tower, then check the SCSI connections on the rear of both towers. If the connectors are seated properly, then pull out the server module far enough to check the long, flat ribbon cable connection. To diagnose possible SCSI cable failures, see the troubleshooting section of the expansion tower user’s guide.
Disc defective or unreadable
If you hear excessive noise on a CD- or DVD-ROM drive, hear the disc “jump”, or if the LEDs on the drives do not operate as expected, you could have a defective or unreadable disc in the drive.
Defective disc
HP CD-ROM drives in the tower are designed to automatically switch down to lower speeds when they encounter a defect or a scratch on the disc and then to continue to read data at the slower speed until a new read command is transmitted to the drive. However, fingerprints, contaminants, or deep scratches on the disc surface may prevent the drive from successfully reading data. Perform the disc cleaning procedure that is described below.
If the problem persists, test a different disc in the same drive; if that disc works properly, the previous disc may be defective. If no disc works properly in the drive, then switch off the server, wait 10 seconds, switch it on again (power cycle), and wait for the self-test to complete and the Status to be solid green. Also, verify that the disc is in a supported format. If the problem persists, the drive may be faulty.
Cleaning a disc
Check each DVD and CD periodically to determine if it needs cleaning. If the disc is dusty, use a commercial, dust removal spray to blow off dust particles. After removing the dust particles, wipe the disc using a clean, soft cotton cloth. Use a straight-line motion, wiping from the center to the outside edge in a non-circular motion.
Figure : Correct procedure for cleaning a disc
If a disc becomes dirty or soiled with grease (or other contaminants not removable by wiping), clean it with a CD disc cleaner available at most computer dealers. Follow the directions packaged with the cleaner. Do not use other cleaning solutions.
  caution:
DO NOT: touch the surface of a disc with your fingers, scratch the reflective top or bottom surface of the disc, drop the disc, or expose the disc to dirt, moisture, or high humidity.
Ejected disc
HP CD-ROM drives in the HP server are designed to automatically eject any unreadable disc. HP DVD-ROM drives in the HP server will eject a disc that is blank or has no Table of Contents. If a disc is ejected, verify that the disc is in the tray with the label side toward the top of the tower (as floor mounted). If it still does not work, the disc may be blank, incorrectly written, or damaged. Also, verify that the disc is in a supported format.
Test a different disc in the same drive; if that disc works properly, the previous disc may be defective. If no disc works properly in the drive, then switch off the server, wait 10 seconds, switch it on again (power cycle), and wait for the self-test to complete and the Status light to be solid green. If problem persists, the drive may be faulty.
Disc format unsupported
If the LEDs on a CD-ROM drive indicate a possible problem with disc format, check that the disc is in a supported format. The following CD and DVD file systems are supported:
  • CD-ROM: Multisession, High Sierra (HSF), ISO 9660 Level 3 with extensions: Rock Ridge, Joliet UDF v1.0x, 1.5, or UDF with ISO 9660 header
  • DVD-ROM, CD-R, CD-RW (for read only): ISO 9660 Level 3, packet-written UDF v1.0x, 1.5, or UDF with ISO 9660 header
Test a different disc in the same drive; if that disc works properly, the previous disc may be defective. If no disc works properly in the drive, then switch off the server, wait 10 seconds, switch it on again (power cycle), and wait for the self-test to complete and the Status light to be solid green. If the problem persists, the drive may be faulty.

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