{"id":174,"date":"2011-11-22T22:54:13","date_gmt":"2011-11-22T22:54:13","guid":{"rendered":"http:\/\/microsoftgeek.com\/?p=174"},"modified":"2011-11-22T22:54:13","modified_gmt":"2011-11-22T22:54:13","slug":"scsi-specifications","status":"publish","type":"post","link":"https:\/\/microsoftgeek.com\/?p=174","title":{"rendered":"SCSI Specifications"},"content":{"rendered":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
SCSI Standard Number\/Name<\/strong><\/td>\nBus Width<\/strong><\/td>\nThroughput (MBps)<\/strong><\/td>\nCable Pin Count<\/strong><\/td>\nSignaling <\/strong><\/td>\nMax Devices<\/strong><\/p>\n

(Incl. Host Adapter)<\/strong><\/td>\n

Max Length (M)<\/strong><\/td>\n<\/tr>\n
SCSI-1\/ \u201cRegular\u201d SCSI<\/td>\n8<\/td>\n5<\/td>\n50<\/td>\nSE<\/td>\n8<\/td>\n6<\/td>\n<\/tr>\n
<\/td>\nHVD<\/td>\n8<\/td>\n25<\/td>\n<\/tr>\n
SCSI-2\/<\/p>\n

Fast SCSI<\/p>\n

Fast narrow<\/td>\n

8<\/td>\n10<\/td>\n50<\/td>\nSE<\/td>\n8<\/td>\n3\u00ad<\/td>\n<\/tr>\n
<\/td>\nHVD<\/td>\n8<\/td>\n25<\/td>\n<\/tr>\n
SCSI-2\/<\/p>\n

Fast wide SCSI<\/td>\n

16<\/td>\n20<\/td>\n68<\/td>\nSE<\/td>\n16<\/td>\n3<\/td>\n<\/tr>\n
<\/td>\nHVD<\/td>\n16<\/td>\n25<\/td>\n<\/tr>\n
SCSI-3\/SPI<\/p>\n

Ultra SCSI<\/td>\n

8<\/td>\n20<\/td>\n50<\/td>\nSE<\/td>\n8<\/p>\n

4<\/td>\n

1.5*<\/p>\n

3<\/td>\n<\/tr>\n

<\/td>\nHVD<\/td>\n8<\/td>\n25<\/td>\n<\/tr>\n
SCSI-3\/SPI<\/p>\n

Wide Ultra SCSI<\/p>\n

Fast Wide 20<\/td>\n

16<\/td>\n40<\/td>\n68<\/td>\nSE<\/td>\n16<\/p>\n

4<\/td>\n

1.5*<\/p>\n

3<\/td>\n<\/tr>\n

<\/td>\n<\/td>\n<\/td>\n<\/td>\nHVD<\/td>\n16<\/td>\n25<\/td>\n<\/tr>\n
SCSI-3\/SPI-2<\/p>\n

Ultra2 SCSI<\/td>\n

8<\/td>\n40<\/td>\n50<\/td>\nLVD<\/td>\n8<\/td>\n12<\/td>\n<\/tr>\n
SCSI-3\/SPI-2<\/p>\n

Wide Ultra 2 SCSI<\/td>\n

16<\/td>\n80<\/td>\n68<\/td>\nLVD<\/td>\n16<\/td>\n12<\/td>\n<\/tr>\n
SCSI-3\/SPI-3<\/p>\n

Ultra 160 SCSI<\/td>\n

16<\/td>\n160<\/td>\n68<\/td>\nLVD<\/td>\n16<\/td>\n12<\/td>\n<\/tr>\n
SCSI-3\/<\/p>\n

Wide Ultra 3 SCSI<\/p>\n

Ultra 320<\/td>\n

16<\/td>\n320<\/td>\n68<\/td>\nLVD<\/td>\n16<\/td>\n12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

*5 or more devices: 1.5 meters. 1-4 devices: 3 meters.<\/p>\n

**25 M cable can be used only when connecting a single device
\nNote: For bus width, 8 bits = \u201cnarrow\u201d and 16 bits = \u201cwide.\u201d 8-bit SCSI always accepts 8 devices, 16-bit SCSI always accepts 16 devices.<\/p>\n

Note: HVD cable always has a max length of 25 meters. LVD cable always has a max length of 12 meters.<\/p>\n

Common SCSI ID Assignments:<\/p>\n

ID 0 \u2013 Bootable Hard Disk<\/p>\n

ID 7 \u2013 Host Adapter<\/p>\n

ID 3 \u2013 CD\/DVD<\/p>\n","protected":false},"excerpt":{"rendered":"

SCSI Standard Number\/Name Bus Width Throughput (MBps) Cable Pin Count Signaling Max Devices (Incl. Host Adapter) Max Length (M) SCSI-1\/ \u201cRegular\u201d SCSI 8 5 50 SE 8 6 HVD 8 25 SCSI-2\/ Fast SCSI Fast narrow 8 10 50 SE 8 3\u00ad HVD 8 25 SCSI-2\/ Fast wide SCSI 16 20 68 SE 16 3 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-174","post","type-post","status-publish","format-standard","hentry","category-computer-tech-stuff"],"_links":{"self":[{"href":"https:\/\/microsoftgeek.com\/index.php?rest_route=\/wp\/v2\/posts\/174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/microsoftgeek.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microsoftgeek.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microsoftgeek.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/microsoftgeek.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=174"}],"version-history":[{"count":1,"href":"https:\/\/microsoftgeek.com\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions"}],"predecessor-version":[{"id":175,"href":"https:\/\/microsoftgeek.com\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions\/175"}],"wp:attachment":[{"href":"https:\/\/microsoftgeek.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microsoftgeek.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microsoftgeek.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}