Adaptec ICP5045BL Guide de l'utilisateur Page 68

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 135
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 67
Appendix A: Introduction to Serial Attached SCSI 68
Terminology Used in This Chapter
For convenience, SAS HBAs and SAS RAID controllers are referred to generically in this
chapter as SAS cards. HBAs, RAID controllers, disk drives, and external disk drive enclosures
are referred to as end devices and expanders are referred to as expander devices.
For convenience, this chapter refers to end devices and expander devices collectively as SAS
devices.
What is SAS?
Legacy parallel SCSI is an interface that lets devices such as computers and disk drives
communicate with each other. Parallel SCSI moves multiple bits of data in parallel (at the same
time), using the SCSI command set.
SAS is an evolution of parallel SCSI to a point-to-point serial interface. SAS also uses the SCSI
command set, but moves multiple bits of data one at a time. SAS links end devices through
direct-attach connections, or through expander devices.
SAS cards can typically support up to 128 end devices and can communicate with both SAS
and SATA devices. (You can add 128 end devices—or even more—with the use of SAS
expanders. See page 72.)
Note:
Although you can use both SAS and SATA disk drives in the same SAS domain (see page
72), ICP recommends that you not combine SAS and SATA disk drives within the same array or
logical drive. The difference in performance between the two types of disk drives may adversely
affect the performance of the array.
Data can move in both directions simultaneously across a SAS connection (called a link—see
page 69). Link speed is 300 MB/sec in half-duplex mode. Therefore, a SAS card with eight links
has a bandwidth of 2400 MB/sec.
Although they share the SCSI command set, SAS is conceptually different from parallel SCSI
physically, and has its own types of connectors, cables, connection options, and terminology,
as described in the rest of this chapter.
To compare SAS to parallel SCSI, see How is SAS Different from Parallel SCSI? on page 73.
Vue de la page 67
1 2 ... 63 64 65 66 67 68 69 70 71 72 73 ... 134 135

Commentaires sur ces manuels

Pas de commentaire

Zanussi ZWG7160P manuels

Manuels d'utilisation et guides de l'utilisateur pour Machines à laver Zanussi ZWG7160P.
Nous fournissons des manuels en pdf 13 Zanussi ZWG7160P à télécharger gratuitement par type de document : Manuel de l'utilisateur






Plus de produits et de manuels pour Machines à laver Zanussi

Modèles Type de document
ZDF212 Manuel de l'utilisateur   ZANUSSI ZDF212 Manuel utilisateur [fr] , 32 pages
Z712W43BI Manuel de l'utilisateur   ZANUSSI Z712W43BI User Manual, 40 pages
ZWF81243W Manuel de l'utilisateur   ZANUSSI ZWF81243W User Manual, 24 pages
ZDT22003FA Manuel de l'utilisateur     ZANUSSI ZDT22003FA Handleiding [en] [fr] [nl] , 52 pages
ZWSE7120V Manuel de l'utilisateur   ZANUSSI ZWSE7120V Uživatelský manuál [sk] , 40 pages
ZWN7120L Manuel de l'utilisateur   ZANUSSI ZWN7120L User Manual [fr] , 28 pages
ZWF01486ZS Manuel de l'utilisateur   ZANUSSI ZWF01486ZS User Manual [nl] , 24 pages
ZWSH7121VS Manuel de l'utilisateur   ZANUSSI ZWSH7121VS User Manual [pl] , 20 pages
ZWH6120V Manuel de l'utilisateur   ZANUSSI ZWH6120V User Manual [en] , 20 pages
ZWF81243W Manuel de l'utilisateur   ZANUSSI ZWF81243W User Manual [nl] , 20 pages
ZWSH7100VS Manuel de l'utilisateur   ZANUSSI ZWSH7100VS Руководство пользователя [de] , 24 pages
ZWG6100P Manuel de l'utilisateur   ZANUSSI ZWG6100P User Manual, 28 pages
ZDT15002FA Manuel de l'utilisateur   ZANUSSI ZDT15002FA Manuel utilisateur [fr] , 16 pages
ZDF222 Manuel de l'utilisateur   ZANUSSI ZDF222 Manuel utilisateur [el] , 28 pages
ZDF311S Manuel de l'utilisateur   ZANUSSI ZDF311S Manuel utilisateur, 36 pages
ZWF81460W Manuel de l'utilisateur   ZANUSSI ZWF81460W User Manual, 20 pages
ZWSH7100SS Manuel de l'utilisateur    ZANUSSI ZWSH7100SS Руководство пользователя [en] , 44 pages
ZWSE7100V Manuel de l'utilisateur    ZANUSSI ZWSE7100V Manuali i perdoruesit [de] , 40 pages
ZWH6140P Manuel de l'utilisateur    ZANUSSI ZWH6140P User Manual, 56 pages
ZWF81243W Manuel de l'utilisateur   ZANUSSI ZWF81243W User Manual, 20 pages