Knapp 1t schwere DMX4s sanft zu bewegen ist gar nicht so einfach.

Die ebenfalls geladenen einarmigen Banditen für die Spielbank wollte der Spediteur nicht herausrücken, obwohl die im RZ einen guten Platz bekommen hätten.

Informationshilfen:
http://www.solarisinternals.com//wiki/index.php?title=Category:ZFS – ZFS tuning
http://www.sun.com/bigadmin/content/submitted/svm_mirroring.jsp – SVM Bootdisk Mirroring
http://powerlink.emc.com > EMC E-Lab-Navigator für Supportmatrix

E-Lab-Navigator Supportmatrix für EMC DMX und SF V490

Tools:

https://HOSTNAME:6789/zfs/zfsmodule/Index – ZFS Webgui

Installiertes Solaris-Release?
# cat /etc/release
Solaris 10 5/08 s10s_u5wos_10 SPARC
Copyright 2008 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 24 March 2008

Kernelparameter für SVM, ZFS, EMC, SAP/Oracle
# cat /etc/system

…
* Begin MDD root info (do not edit)
rootdev:/pseudo/md@0:0,10,blk
set md:mirrored_root_flag=1
* End MDD root info (do not edit)

* ZFS
* http://www.solarisinternals.com/wiki/index.php/ZFS_Evil_Tuning_Guide

* disk-cache flush aus
set zfs:zfs_nocacheflush=1

* 4GB RAM max. fuer ZFS-Arc-Cache (0xWERT , WERT = MB*1024*1024 > HEX)
set zfs:zfs_arc_max=0×100000000

* File-Level-Prefetching
* set zfs:zfs_prefetch_disable = 1

* Device-Level-Prefetching (13 = 8k-Bloecke fuer disks reads, OLTP-tuning)
set zfs:zfs_vdev_cache_bshift = 13

* Device-Level-Prefetching ausschalten
* set zfs:zfs_vdev_cache_max = 0×1

* Device I/O Queue Size (I/O Concurrency)
* I/O queue depth pro LUN, default=35
* bei lokalen SATA-disks auf 10 setzen
* ansonsten gleich ssd_max_throttle setzen
set zfs:zfs_vdev_max_pending = 32

* EMC

* Queue-Laenge (empfohlen 20, bei Metadevices ggf. 32)
set ssd:ssd_max_throttle=32

* Timeout in HEX, recommended 0x3c = 60s bei multipathing, sonst 0×78
set ssd:ssd_io_time=0x3c

* Verzoegerung bis device als offline betrachtet wird
set fcp:fcp_offline_delay=20

* SAP / Oracle

* max. file descriptors pro Prozess
set rlim_fd_cur=8192

* security: stack nicht ausfuehrbar
set noexec_user_stack=1

Emulex-Treiber für Anschluß an SAN-Switch konfigurieren
# cat emlxs.conf
…
# +++ Variables relating to IP networking support. +++
#
# network-on: Enable/Disable IP networking support in the driver.
#
# 0 = Disables IP networking suppport in the driver.
# 1 = Enables IP networking suppport in the driver.
#
# Range: Min:0 Max:1 Default:1
#
#network-on=1;
network-on=0;
#
# +++ Fibre Channel specific parameters +++
#
# topology: link topology for initializing the Fibre Channel connection.
#
# 0 = attempt loop mode, if it fails attempt point-to-point mode
# 2 = attempt point-to-point mode only
# 4 = attempt loop mode only
# 6 = attempt point-to-point mode, if it fails attempt loop mode
#
# Set point-to-point mode if you want to run as an N_Port.
# Set loop mode if you want to run as an NL_Port.
#
# Range: Min:0 Max:6 Default:0
#
#topology=0;
topology=2;
# link-speed: Sets the link speed setting for initializing the Fibre Channel
# connection.
#
# 0 = auto select
# 1 = 1 Gigabaud
# 2 = 2 Gigabaud
# 4 = 4 Gigabaud
# 8 = 8 Gigabaud
#
# Range: Min:0 Max:8 Default:0
#
link-speed=0;
…

Multipathing konfigurieren
# cat fp.conf
…
#
# I/O multipathing feature (MPxIO) can be enabled or disabled using
# mpxio-disable property. Setting mpxio-disable=”no” will activate
# I/O multipathing; setting mpxio-disable=”yes” disables the feature.
#
# Global mpxio-disable property:
#
# To globally enable MPxIO on all fp ports set:
# mpxio-disable=”no”;
#
# To globally disable MPxIO on all fp ports set:
# mpxio-disable=”yes”;
#
# Per port mpxio-disable property:
#
# You can also enable or disable MPxIO on a per port basis.
# Per port settings override the global setting for the specified ports.
# To disable MPxIO on port 0 whose parent is /pci@8,600000/SUNW,qlc@4 set:
# name=”fp” parent=”/pci@8,600000/SUNW,qlc@4″ port=0 mpxio-disable=”yes”;
#
# NOTE: If you just want to enable or disable MPxIO on all fp ports, it is
# better to use stmsboot(1M) as it also updates /etc/vfstab.
#
#
# You can describe a list of target port WWNs and LUN numbers which will
# not be configured. LUN numbers will be interpreted as decimal. White
# spaces and ‘,’ can be used in the list of LUN numbers.
#
# pwwn-lun-blacklist=
# “target-port-wwn,lun-list”
#
# To prevent LUNs 1 and 2 from being configured for target
# port 510000f010fd92a1 and target port 510000e012079df1, set:
#
# pwwn-lun-blacklist=
# “510000f010fd92a1,1,2″,
# “510000e012079df1,1,2″;
#
# mpxio einschalten
mpxio-disable=”no”;
# mpxio fuer interne FC disks ausschalten
name=”fp” parent=”/pci@9,600000/SUNW,qlc@2″ port=0 mpxio-disable=”yes”;

Multipathing für Zusammenarbeit mit EMC DMX konfigurieren
# cat /kernel/drv/scsi_vhci.conf
…
# Load balancing global configuration: setting load-balance=”none” will cause
# all I/O to a given device (which supports multipath I/O) to occur via one
# path. Setting load-balance=”round-robin” will cause each path to the device
# to be used in turn.
#
load-balance=”round-robin”;
#
# Automatic failback configuration
# possible values are auto-failback=”enable” or auto-failback=”disable”
auto-failback=”enable”;
#
# For enabling MPxIO support for 3rd party symmetric device need an
# entry similar to following in this file. Just replace the “SUN SENA”
# part with the Vendor ID/Product ID for the device, exactly as reported by
# Inquiry cmd.
#
# device-type-scsi-options-list =
# “SUN SENA”, “symmetric-option”;
#
# symmetric-option = 0×1000000;
# Konfiguration fuer EMC Symmetrix
# zwischen EMC und SYMMETRIX 5 Leerzeichen!!!
device-type-scsi-options-list = “EMC SYMMETRIX”, “symmetric-option”;
symmetric-option = 0×1000000;

Zum Aktivieren der Konfiguration:
# reboot — -r

Dies stellt nur eine kurze Übersicht der relevanten Parameter für ein Testsystem dar. Kommentare und konstruktive Kritik sind willkommen