Dell PowerVault TL2000 Reference Manual

Also see for PowerVault TL2000: Getting started guide User guide Faq Quick start guide User guide

Contents

Field descriptions:Perf: When this bit is set to 0, this indicates that informational exception operations that can causedelays are acceptable. This bit should be set to zero.Dexcpt:When this bit is set to zero the reporting method indicated by the MRIE field is used. When this bitis set to one this indicates that the media changer shall disable all information exceptionoperations, ignoring the MRIE field (In this mode the initiator must the poll the Tape Alert logpage). Currently only MRIE mode 0 is supported, so this bit is ignored.Test: Test modes are not supported, this field must be set to zero.LogErr:When this bit is set to 0, the media changer shall not log any Tape Alert events. When this bit isset to 1, the media changer shall log Tape Alert events.MRIE: With this field the initiator can specify the method used by the media changer to reportinformational exception conditions (Tape Alert events). Currently only mode 0 is supported. Thismeans that Tape Alert flags can only be read by polling with the LOG SENSE command to theTape Alert page.Interval Timer:The media changer does not report Tape Alert conditions as Informational Exception conditions,therefore this field must be set to zero.Report Count / Test Flag Number:Since test modes are not supported, this field reports Report Count only. But the media changerdoes not report Tape Alert events as Informational Exception conditions, therefore this field mustbe set to zero.Element Address Assignment page (1Dh)The Element Address Assignment Page is used to assign new addresses to the elements of the mediumchanger (via the Mode Select command) and to report those assignments (Mode Sense). When requestedthe media changer can store new element addresses in NVRAM. When stored in NVRAM theseaddresses will automatically become the default addresses after every power up. The format of theelement address assignment page is shown in the next table. Note this page will only be stored in nonvolatile memory when the Host sets the SP bit in the CDB.Bit 7 6 5 4 3 2 1 0Byte0 Reserved SPF (0) Page Code (1Dh)1 Additional Page Length (12h)2 First Medium Transport Element Address3 Number of Medium Transport Elements4 First Storage Element Address5 Number of Storage Elements6 First Import / Export Element Address7 Number of Import / Export Elements8 First Data Transfer Element Address9 Number of Data Transfer Elements10 Reserved11 Reserved3-24 TL2000 and TL4000 SCSI Reference