Tape Drives on old AS/400 - Revision history

PoC: /* Footnotes */ +cat

2026-04-14T21:40:37Z

Footnotes: +cat

← Older revision		Revision as of 23:40, 14 April 2026
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	[[Category: Hardware Configuration Guide‏‎]]		[[Category: Hardware Configuration Guide‏‎]]
			[[Category: Hardware Repair]]

PoC: LTO1 in 150

2026-04-07T13:23:07Z

LTO1 in 150

← Older revision		Revision as of 15:23, 7 April 2026
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	\|None.		\|None.
	\|DIP-Switches set to default.<br />Drive not recognised in DST.		\|DIP-Switches set to default.<br />Drive not recognised in DST.
			\|- style="vertical-align:top; background-color:#ffdddd;"
			\|HP LTO1
			\|9401-150/V4R5
			\|None.
			\|Drive not recognised in DST.
	\|}		\|}

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	{\|class="wikitable		{\|class="wikitable
	\|style="align:center; background-color:#ddffdd;"\|Green is for ''works without or with just minor errors''.		\|style="align:center; background-color:#ddffdd;"\|Green is for ''works without or with just minor errors''.
	\|style="align:center; background-color:#ffffdd;"\|Yellow is for ''works, but with errors''.		\|style="align:center; background-color:#ffffdd;"\|Yellow is for ''works, but with minor errors''.
	\|style="align:center; background-color:#ffdddd;"\|Red is for ''does not work''.		\|style="align:center; background-color:#ffdddd;"\|Red is for ''does not work at all''.
	\|}		\|}

PoC: More precise

2026-04-05T16:22:19Z

More precise

← Older revision		Revision as of 18:22, 5 April 2026
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	* by removing that cleaning assembly completely.		* by removing that cleaning assembly completely.

	I have two drives running without being able to clean automatically for years. They tend to more often ask for a cleaning tape, though. And once in a while, I remove the drives and clean the drum assembly by hand, with ~~the tip of~~ a soft cloth soaked with denatured alcohol.		I have two drives running without being able to clean automatically for years. They tend to more often ask for a cleaning tape, though. And once in a while, I remove the drives and clean the drum assembly by hand. Preferably with a cotton swab or a soft cloth, soaked with denatured alcohol, or — preferably — isopropyl alcohol or specialized magnetic tape head cleaning solution.<ref>Example: Kontakt Chemie Video 90 spray.</ref>

	I have not yet found a reliable way of determining which DDS1 and 2 drive models are "safe" and which are not. I have not yet had a DDS3 drive out of four with that foam roller.		I have not yet found a reliable way of determining which DDS1 and 2 drive models are "safe" and which are not. I have not yet had a DDS3 drive out of four with that foam roller, though.

	== See also ==		== See also ==

Greenfive: fixed another typo

2026-04-05T15:25:33Z

fixed another typo

← Older revision		Revision as of 17:25, 5 April 2026
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	* by removing that cleaning assembly completely.		* by removing that cleaning assembly completely.

	I have two drives running without being able to clean automatically for years. They tend to more often ask for a cleaning tape, though. And once in a while, I remove the drives and clean the drum assembly by hand, with the tip of a soft cloth soaked with denatured ~~Alcohol~~.		I have two drives running without being able to clean automatically for years. They tend to more often ask for a cleaning tape, though. And once in a while, I remove the drives and clean the drum assembly by hand, with the tip of a soft cloth soaked with denatured alcohol.

	I have not yet found a reliable way of determining which DDS1 and 2 drive models are "safe" and which are not. I have not yet had a DDS3 drive out of four with that foam roller.		I have not yet found a reliable way of determining which DDS1 and 2 drive models are "safe" and which are not. I have not yet had a DDS3 drive out of four with that foam roller.

Greenfive: fixed typo

2026-04-05T15:25:03Z

fixed typo

← Older revision		Revision as of 17:25, 5 April 2026
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	For these drives, '''it's crucial to prevent the foam roller to make contact with the head before you do any testing'''!		For these drives, '''it's crucial to prevent the foam roller to make contact with the head before you do any testing'''!
	* by physically removing the foam residue from the roller; denatured ~~Alcohol~~ helps in cleaning.		* by physically removing the foam residue from the roller; denatured alcohol helps in cleaning.
	* by unplugging the power plug to the coil.		* by unplugging the power plug to the coil.
	* by removing that cleaning assembly completely.		* by removing that cleaning assembly completely.

PoC: +DLT

2026-03-08T19:51:30Z

+DLT

← Older revision		Revision as of 21:51, 8 March 2026
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	\|Save/Restore		\|Save/Restore
	\|DIP-Switches set to default.<br />SCSI errors are logged for every initial access.<br />Works otherwise.		\|DIP-Switches set to default.<br />SCSI errors are logged for every initial access.<br />Works otherwise.
	\|-style="vertical-align:top; background-color:#ffffdd;"		\|- style="vertical-align:top; background-color:#ffffdd;"
	\|HP LTO1		\|HP LTO1
	\|9406-800/V5R4 + 2757 SCSI RAID-Controller		\|9406-800/V5R4 + 2757 SCSI RAID-Controller
	\|Save/Restore		\|Save/Restore
	\|SCSI-Errors logged at IPL time, and for every initial access.<br />Works otherwise.		\|SCSI-Errors logged at IPL time, and for every initial access.<br />Works otherwise.
			\|- style="vertical-align:top; background-color:#ffffdd;"
			\|Quantum DLT4000
			\|9401-150/V4R5
			\|Save/Restore
			\|SCSI-Error 63A09210<ref>Illegal or unsupported tape unit response.</ref> logged at IPL time, and for each access.<br />Works otherwise.
	\|- style="vertical-align:top; background-color:#ffdddd;"		\|- style="vertical-align:top; background-color:#ffdddd;"
	\|HP DDS-1/2/3		\|HP DDS-1/2/3
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	I have not yet found a reliable way of determining which DDS1 and 2 drive models are "safe" and which are not. I have not yet had a DDS3 drive out of four with that foam roller.		I have not yet found a reliable way of determining which DDS1 and 2 drive models are "safe" and which are not. I have not yet had a DDS3 drive out of four with that foam roller.

			== See also ==
			* [[Tape device related system reference codes]]

	== Footnotes ==		== Footnotes ==

PoC: More precise

2025-11-23T21:11:58Z

More precise

← Older revision		Revision as of 23:11, 23 November 2025
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	\|DIP-Switches set to default.		\|DIP-Switches set to default.
	\|- style="vertical-align:top; background-color:#ddffdd;"		\|- style="vertical-align:top; background-color:#ddffdd;"
	\|HP DLTVS 80<ref>'''Caution!''' Protect the controller board of the drive with a piece of carton or other insulating material. The EMI prevention springs will scratch components from the board otherwise.</ref>		\|HP DLTVS 80<ref>'''Caution!''' Protect the controller board of the drive with a piece of carton or other insulating material. The EMI prevention springs of the case will scratch components from the board otherwise.</ref>
	\|9406-S20/V4R4 + 2726 SCSI RAID-Controller		\|9406-S20/V4R4 + 2726 SCSI RAID-Controller
	\|Save/Restore		\|Save/Restore

PoC: Added color legend

2024-04-24T19:49:04Z

Added color legend

← Older revision		Revision as of 21:49, 24 April 2024
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	\|DIP-Switches set to default.<br />Drive not recognised in DST.		\|DIP-Switches set to default.<br />Drive not recognised in DST.
	\|}		\|}

			Color legend:
			{\|class="wikitable
			\|style="align:center; background-color:#ddffdd;"\|Green is for ''works without or with just minor errors''.
			\|style="align:center; background-color:#ffffdd;"\|Yellow is for ''works, but with errors''.
			\|style="align:center; background-color:#ffdddd;"\|Red is for ''does not work''.
			\|}

			Please see the ''Remarks'' column for further details.

	== A Word on HP DDS drives ==		== A Word on HP DDS drives ==

PoC: New entry, more deetails

2024-01-02T13:41:42Z

New entry, more deetails

← Older revision		Revision as of 15:41, 2 January 2024
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	The QIC drives contained in many older machines are often defective, or it's expensive to impossible to get actual tapes for these drives. Sometimes, stock tape drives can be used also. This article documents which combination of machine, OS release, and drive has been tested so far.		The QIC drives contained in many older machines are often defective, or it's expensive to impossible to get actual tapes for these drives. Sometimes, stock tape drives can be used also. This article documents which combination of machine, OS release, and drive has been tested so far.

			<blockquote>'''Note''': The mentioned drives have been used to '''replace''' an existing internal drive, being connected to the internal SCSI bus. Some machines have hidden SCSI ports. Using those will fail to terminate the SCSI bus properly, with accompanying problems for the connected devices to transfer data.</blockquote>

	{\|class="wikitable sortable"		{\|class="wikitable sortable"
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	!Tasks tested		!Tasks tested
	!Remark		!Remark
	\|-style="vertical-align:top; background-color:#ddffdd;"		\|- style="vertical-align:top; background-color:#ddffdd;"
	\|HP DDS-1/2/3		\|HP DDS-1/2/3
	\|9401-150/V4R5		\|9401-150/V4R5
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	\|Save/Restore		\|Save/Restore
	\|SCSI-Error logged at IPL time.<br />Works otherwise.		\|SCSI-Error logged at IPL time.<br />Works otherwise.
			\|- style="vertical-align:top; background-color:#ddffdd;"
			\|Dell LTO2<ref>Reported by third party.</ref>
			\|9406-170 V4
			\|Save/Restore
			\|
	\|- style="vertical-align:top; background-color:#ffffdd;"		\|- style="vertical-align:top; background-color:#ffffdd;"
	\|Conner CDT20004R-S		\|Conner CDT20004R-S

PoC: Expansion on HP DDS

2022-02-27T16:26:29Z

Expansion on HP DDS

@@ Line 37: / Line 37: @@
 |DIP-Switches set to default.<br />Drive not recognised in DST.
 |}
 == Footnotes ==