- Page 1: Configuration and Tuning GPFS for D
- Page 5 and 6: Contents Notices . . . . . . . . .
- Page 7 and 8: 4.4.3 Starting NFS . . . . . . . .
- Page 9 and 10: Notices This information was develo
- Page 11 and 12: Preface This IBM® Redbooks® publi
- Page 13 and 14: Francois-Xavier Drouet, Francois Po
- Page 15 and 16: Summary of changes This section des
- Page 17 and 18: 1 Chapter 1. Introduction to digita
- Page 19 and 20: All digital media moves through the
- Page 21 and 22: Interactive Media Video Text Image
- Page 23 and 24: Table 1-1 shows the profile for CCT
- Page 25 and 26: Table 1-3 Broadcasting profile 1.3.
- Page 27 and 28: necessary for material contents cla
- Page 29 and 30: The conclusion we can draw is that
- Page 31 and 32: Reminder: It is easy to attach a de
- Page 33 and 34: 1.6.1 Advanced tape management with
- Page 35 and 36: Top customer problems/requirements
- Page 37 and 38: 1.7 ADMIRA HDM HDM HDM HDM SAN Figu
- Page 39 and 40: Interfaces insure openness to a wid
- Page 41 and 42: Metadata Database Server Shared Sto
- Page 43 and 44: OESV virtualizes most primary IT Se
- Page 45 and 46: components. This fulfils the requir
- Page 47 and 48: Chapter 2. Introduction to GPFS 2 T
- Page 49 and 50: VIDEO STREAMING Tiger Shark * Real
- Page 51 and 52: 2.2 GPFS architecture overview This
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- Performs the token management (th
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The number of regions is set at fil
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TM Token Manager TM Token Manager r
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2.2.5 GPFS management functions ava
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Note: In the first case, even thoug
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Note: The time intervals shown in t
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There are situations where it may b
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This behavior poses the problem tha
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1' 8 9’ 13 Data LUN0 Example 2 (F
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state of the file system would beco
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General Parallel File System Failur
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Figure 2-17 Three failure groups (e
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2 10 Data LUN0 Write Complete 1 2 3
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Note: There is no preferred model,
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► Can utilize extra switch bandwi
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Application Node With GPFS Daemon A
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Cluster 1 Nodes Site 1 SAN Local di
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Miscellaneous questions ► Is educ
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Table 2-2 provides a quick overview
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command node influencing / node rel
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performance impacting commands - /
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disruptive commands parameter expla
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3 Chapter 3. Infrastructure configu
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Tip: Assign a management station (o
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In new actual implementations the E
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Figure 3-2 DS4500 GUI - Check the S
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Example 3-2 DS4500 storage profile
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1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7
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Figure 3-7 shows the overall config
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... Host Port: 10:00:00:00:c9:33:01
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switchState: Online switchMode: Nat
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► One dual port on-board Gigabit
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Figure 3-11 LPAR profile of p5 550
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GPFS - net 10.10.100..x 1 2 3 4 p55
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Figure 3-13 SLES9-yast-setup - Inst
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Figure 3-15 SLES9-yast-setup - Inst
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After the system comes up again, fi
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The other two multipathing methods
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Figure 3-18 DS4500 - Change Host Ty
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label = MPP root = /dev/sdd3 append
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RDAC/MPP stores information in the
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[scsi adapter id:channel id:scsi id
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► Add the following line to /etc/
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On AIX you need to download the pac
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Tip: If you have access to an exter
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5. Install GPFS packages and define
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* The DISTRIBUTION_LEVEL may be req
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► A node descriptor file (see Exa
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Tip: We recommend that you always s
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We provide the information about th
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clusterType lc multinode yes autolo
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Chapter 4. Advanced topics This cha
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File System File System Local HBA s
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Some vendors also provide a failove
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append = "selinux=0 elevator=cfq pa
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insmod /lib/modules/2.6.5-7.145-pse
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The application (file system in thi
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Example 4-6 Verbose multipath outpu
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The multipathd daemon will run mult
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listing them. The following Example
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4.3 Samba server As user root, crea
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On RHEL, you have to issue: up2date
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Nevertheless, we recommend using TC
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Additional information NFS For Linu
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The fsid value is a unique 32bit nu
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... Copy the complete contents of t
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Change lilo.conf or grub.conf (depe
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5 Chapter 5. Maintaining and tuning
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The following steps describe a perf
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5.2.1 Tuning storage Tuning paramet
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The most important aspects you need
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The sysctl command also allows you
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5.2.4 Tuning GPFS For configuring j
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######## DMAPI configuration ######
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## normally (if they can. The local
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► Tweak process scheduling, prior
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General UNIX tools: iostat, vmstat,
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command regmon X X strace X X X tcp
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dist - remote file distribution cli
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scp - remote secure copy scp is par
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node01 shmux - command: date; node
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shmux! Child for node01 exited with
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your modules with others will provi
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If you’re using nfsstat to monito
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Example 5-19 shows how you can run
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e useful to allow an application co
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10.Enable O_DIRECT in Samba (disabl
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Appendix A. Basic infrastructure co
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implicit 0 display message prompt 1
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host js20n12 { # hardware ethernet
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Figure A-3 YaST Installation Server
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Example: A-4 OpenSSL/OpenSSH packag
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► As user “root”, generate th
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► RDAC (SMRDAC) This component pr
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The SOL session puffers up to 8 KB
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Appware version: 06.12.03.00 Bootwa
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Current owner: Controller in slot B
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Appendix B. Typical broadcast syste
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Hierarchical Storage Management (On
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oll-based customizable view. This w
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ead cache is full, it will drop the
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Appendix C. Yam: Installation serve
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does this by copying the complete c
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Abbreviations and acronyms eRMM Ent
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Related publications IBM Redbooks T
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Index Symbols /proc 178 /var/mmfs/e
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journal 44 journal recovery 48 jour
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storage partitioning 85 storage str
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(0.5” spine) 0.475”0.875” 250