GSE18112009-ds8700 Jacques Short 20091117 - ds8700 update.pdf · DS8700 Improvements –Device...
Transcript of GSE18112009-ds8700 Jacques Short 20091117 - ds8700 update.pdf · DS8700 Improvements –Device...
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IBM Systems
© 2009 IBM Corporation
IBM Systems Storage DS8700
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IBM Systems
Summary - DS8700 (2-way/4 way base frame)242x model 941
I/O Drawers (slightly larger at 5U)
4GB features only (no 2GB/ no ESCON)
Drawers attached via PCI-E switch
New Host Attachment and
Device Adapter features (PCI-E)
Batteries
Power Supplies
P6 (POWER 6) Servers
Feature specified 2-way(#4301)/4-way(#4302)
2-way processor memory size 32GB-128GB
4-way processor memory size 32GB-384GB
4-way required for expansion frame models
HMC – new laptop
Familiar Layout
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IBM Systems
DS8700 (4-Way with two expansion frames, Rear view)
�Non-disruptive MES of
first expansion frame
�Capable of being
extended to 5 frames
�Expansion frame with
IO drawers must be
model 94E
�Expansion Frames
without IO drawers can
be either 94E/92E
�Use models 931/932 if
Thin Provisioning or
Remote Pair FlashCopy
is required
941 Base94E/92E Position 2 (#0341) 94E Position 1 (#0340)
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IBM Systems
�Hardware changes from
DS8100/DS8300 to the DS8700► IBM Power6-based controller
► PCI Express (PCIe) internal fabric
► New PCIe IO Drawer
► Updated Device Adapter
► Increased cache and NVS size
Agenda
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IBM Systems
High Bandwidth, Fault Tolerant InterconnectHigh Bandwidth, Fault Tolerant Interconnect
DS8000 Topology – All Models
SANSAN
Persistent memory
Volatile memoryN-way
SMP
Persistent memory
Volatile memory N-waySMP
RAID
Adapters
RAID
Adapters
Host
Adapters
Host
AdaptersHost
AdaptersHost
AdaptersHost
AdaptersHost
Adapters
Host1Host2 Host3
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IBM Systems
DS8300 Architecture Host
…
…
4-way P5 570 2.2GHz
Memory DIMMs
Memory DIMMs
P5
L3 Cache
Memory DIMMs
Memory DIMMs
P5
L3 Cache
4-way P5 570 2.2GHz
Memory DIMMs
Memory DIMMsP5
L3 Cache
Memory DIMMs
Memory DIMMs
P5
L3 Cache
= Updated in DS8700
Server/CPU:
Power5+ IO Fabric:
RIO
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IBM Systems
DS8700 Architecture Host
…
…
2/4-way P6 570 4.7Ghz
Memory DIMMs
Memory DIMMs
P6L3 Cache
Memory DIMMs
Memory DIMMs
P6
L3 Cache
2/4-way P6 570 4.7Ghz
Memory DIMMs
Memory DIMMsP6
L3 Cache
Memory DIMMs
Memory DIMMs
P6
L3 Cache
Power6
processor PCIe point to point
connections
PCIe IO
Drawer
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IBM Systems
Hardware Changes in the DS8700
Front Rear
v
P6 Servers4.7Ghz 2/4-way
New PCIe IO Host Bay
Advanced Gen2 PCIeHigh Bandwidth IO Fabric
Point to point cables
PCIe Bridged AdaptersNew adapter processor
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IBM Systems
Advanced PCIe Internal Component Interconnect
� Performance► Bi-directional, full duplex, low latency
► Symmetrical access to data -> no performance skew
� Reliability: ► Bit error auto-correction with CRC detection
� Industry standard with 800 members in PCIe Special
Interest Group (SIG)
� Millions of lines of firmware support in existence
PCI Express is a interconnect technology designed to
provide universal connectivity for use as a chip-to-chip and chip to adapter card interconnect.
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IBM Systems
DS8700 Improvements - Cluster
�Power6 Processor► 4.7 GHz P6 570 CECs
● 941 2-way
– Up to 128 drives
♦ Base rack
● 941 4-way
– Up to 1024 drives
♦ Base rack plus up to 4 expansion frames (94E)
♦ First expansion rack contains additional IO enclosures
�All expansion frames can be added concurrently
�Concurrent upgrade from 2-way to 4-way system
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IBM Systems
DS8700 Improvements - Cluster
� Power6 Processor
► 4.7 GHz P6 570 CECs
● 941 2-way
– Up to 128 drives
♦ Base rack
● 941 4-way
– Up to 1024 drives
♦ Base rack plus up to 4 expansion frames (94E)
♦ First expansion rack contains additional IO enclosures
� All expansion frames can be added concurrently
� Concurrent upgrade from 2-way to 4-way system
� Dedicated Ethernet Adapters for TPC-R no longer required / available
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IBM Systems
DS8700 Improvements – Device Adapter
�Replace 750FX (0.5 GHz) processor
with the 750GX (1 GHz) processor
�Upgrade to PCIe interface for point-
to-point connection
�Why it matters► Throughput enhancement from PCIe upgrade
► Better performance in IOPS-sensitive workloads
● Enables better utilization of SSD drives
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IBM Systems
DS8700 Improvements – Cache and NVS
�Cache options► 941 2-way
● 32GB to 128GB
► 941 4-way
● 32GB to 384GB
�NVS Sizes
(static – based
on cache size)► 1GB – 12GB
1GB32GB
12GB384GB
8GB256GB
4GB128GB
2GB64GB
NVS SizeCache
Size
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IBM Systems
DS8700 - Model Reduction from 5 to 2 Non-DisruptiveUpgrade Path
�2 models: 1 A frame (941) and 1 B frame (94E)
�2-way base with 1st I/O tower pair feature standard
�Enables lower entry price by not requiring 2nd I/O tower pair
�2-way – up to 128 drives in base frame
�Add 2nd I/O tower pair feature (can be field added non-disruptively)
�4-way = 2-way base + processor card feature + 2nd I/O tower pair feature
�4-way + 1st expansion frame added concurrently
� 4-way + 1st expansion frame. Add expansion frames to 1024 drives
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IBM Systems
DS8700 – Improving on DS8000
� Increase in performance
► Sequential and IOPs vs DS8300
� Improved flexibility
► Additional concurrent hardware upgrade capability
� Simplify and improved DS8000 design
► Simplified adapter card packaging, smaller cables
� Maintain quality of latest generation DS8000
►Minimize changes to higher level code
► Carry forward the same parts and their locations
� Bring forward features and advanced function in DS8000
► Built from DS8000 R4.2 code base
► Remote mirror and copy functions are interoperable
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IBM Systems
DS8000 Family Summary
323216Host Adapter Slots
12812864Max Host Adapter Ports
FCPFCPFCPPPRC Fabric
2 TB2 TB2 TBMax LUN Size
Add / DelAdd / DelAdd / DelDynamic Provisioning
32-384GB / 1-12GB32-284GB / 1-8GB16-128GB / 1-4GBCache / NVS
P6 4.7GHz 2 or 4-wayP5 2.2GHz 4-wayP5 2.2GHz 2-wayProcessor
4 Gb FC x 4 portsESCON x 2 ports
4 Gb FC x 4 ports
ESCON x 2 ports
4 Gb FC x 4 ports
Host Adapters
16168DA Slots
512512512Max Logical Paths / CU
2K2K2KMax Process Logins
510510510Max N-Port Logins/Port
64K total64K total64K totalMax Number of LUNs / CKD volumes
717.6 TB717.6 TB173 TBMax Capacity w/450GB DDM
239.2 TB239.2 TB56 TBMax Capacity w/146GB DDM
RAID 5, 6, 10RAID 5, 6, 10RAID 5, 6, 10RAID Types
73, 146 GB73, 146 GB73, 146 GBSSD DDM Types
1 TB1 TB1 TBSATA DDM Types
146, 300, 450 GB146, 300, 450 GB146, 300, 450 GBFC DDM Types
FC-ALFC-ALFC-ALDDM Interface
16-102416-102416-384DDMs
DS8700DS8300DS8100