Table 10: Sharing (Sh) And Switching (Sw) Between System Types; Rules Of Usage For Disks D3435 And D3475-8F - Fujitsu Siemens Computers SX series User Manual

Additional information for disks

9.3.2 Rules of usage for disks D3435 and D3475-8F

D3475-8F
An LUN is divided into 1-7 slices of the same size. Here the BS2000 format (KEY, NK2,
NK4) may be selected and configured. The disk can be initialized via PRIMEPOWER
ServerView for BS2000 operation. Where necessary an IPL-compatible BS2000 can be
placed on the disk
Only this type can be used for internal SCSI disks.
In the case of Fibre Channel disks this disk type must be used if an LUN is to be divided
into several BS2000 disks.
!
D3435
One BS2000 disk is made available for each LUN.
If MirrorView/SnapView is used for FibreCat, or if SRDF and TimeFinder are used for
Symmetrix, D3435 is the recommended disk type.
If there is sharing with Fibre Channel channel disks of an S server, this type of disk must
be used.
If a Symmetrix disk in FBA format is now operated by the customer on the ESCON
channel, this disk can be reconfigured to a Fibre Channel connection of Symmetrix and
processed further as DS3435 without changing the data. It is also said that the disk can
be switched. This makes it suitable for data migration. In shared operation, however,
this disk can only be operated by the SX and S servers to which it is connected by Fibre
Channel.
Table for sharing (sh) and switching (sw) between system types:
SX1xx – D3475-8F
SX1xx – D3435
SR2000/DS2000 – D3475-8F
S1xx – fibre channel connection
Symmetrix – ESCON – FBA-Format
Symmetrix – ESCON – CKD-Format

Table 10: Sharing (sh) and switching (sw) between system types

230
CAUTION!
If MirrorView/SnapView is used for FibreCat, or if SRDF and TimeFinder are used
for Symmetrix, D3435 is the strictly recommended disk type.
Global X2000 functions
SX1xx - D3475-8F
sh + sw
-
-
-
-
-
SX1xx - D3435
-
sh + sw
-
sh + sw
sw
-
U41272-J-Z385-3-76