... At the end of the course, student should be able to
... – Same arguments apply as regular IP
– Yes for GENI; not operationally?
... Scan the disks listed in /dev/rdsk
If no UUID is present, generate a unique UUID
and stamp it in the disk’s private region
Add this device to a hash table hashed on UUID
Load this table to the kernel and write the ioctls
to update this info
Use an algorithm (Currently round robin) to
... – FC, RS232, IEEE1394 (FireWire)
– 1 bit per clock, self clocking
– can be run at much higher speeds than
... Every node in the cluster does its own packet
filtering, and establishes IPSEC tunnels as
This is performed transparently, requiring no user
CHAOS is capable of PXE booting new
幻灯片 1 - Universidad Abierta Interamericana
... The Storage Bottleneck of Cluster
• NFS (Network File System)
– Most widely used in clusters to provide shared data access
– Simple and easy to use and management
ppt - University of Connecticut
... o Limits AS functions from directly accessing objects
o Limits access to the OSD services library
Forces the use of RPC
o Enforces the use of OSD security mechanisms
... be pooled and allocated
on demand which provides
increased flexibility, more
granular and efficient
allocation of pooled
resources, and more
Slide - Indico
... – People should note that the lead time from announcement to effective
deployment of new technologies is up to a year.
– It is noted that the computing models assume that archived data is
available at the time of attempted processing. This implies that the
software layer allows pre-staging and pinni ...
UNIT – II – Virtualization
... • Node 1 goes down, no heartbeat
• The services are transferred and
rendered from Node 2
• This is transparent and hence
virtual to the client
The transport protocol for IP storage should meet the requirements
... 4.6 Able to use off the shelf Ethernet switches and IP routers
In simple configurations, level 2 switches will be adequate and cost effective. For
more complex environments and where the management needs require the features of
IP, level 3 switches and routers will be necessary.
4.7 Needs easy manag ...
Virtual - Microsoft Center
... • Limited VLAN capacity on each
switch and port (4095 max)
• Limited machine capacity on
• Limits migration of machines
• High management overhead
... – As with any testing, we maximized our system to attain the highest
performance numbers possible
– Our recently completed benchmark disproves any theory that an in-band
virtualization solution negatively impacts performance, in fact, it can boost
performance to unprecedented levels for systems such ...
Proposed storage Area Network Facilities
... and application servers
The management of storage resources is separated
from the management of servers by establishing a
network that removes the physical mapping of
storage devices to physical servers
This network allows isolated islands of storage to be
pooled together and allocated to servers in ...
... • Walrus is interface compatible with Amazon’s Simple Storage Service
(S3), providing a mechanism for storing and accessing virtual
machine images and user data
... Or you can buy a really expensive chassis switch with multiple power supplies, line
cards, switching fabrics and management cards
... Price/Performance gap between laptops and desktops has narrowed considerably
Availability of workstation-class laptops for computing intensive tasks like
software development and computer-aided design
– Laptop reliability has improved
... Crash Course in CloudLab
• Underneath, it’s GENI
• Same APIs, same account system
• Even many of the same tools
• Federated (accept each other’s accounts, hardware)
• Physical isolation for compute, storage (shared net.*)
• Profiles are one of the key abstractions
• Defines an environment – hardware ...
... in place to ensure
that you receive the
best pricing and
model with all
experience in Data
desktop and server
expertise focusing ...
Open-E - Case Study - DieWe Diamantwerkzeuge GmbH
... No interruption to operation results, even when
system hardware components – for instance
given a fault – have to be replaced.
• High availability of the server services is very
much down to an N+1 redundancy of the server
hardware at unrivalled low costs and without
the use of expensive cluster sof ...
... • The tables in the Database should be constructed
with care so that the number of read/write
operations can be minimized.
• The Server should have sufficient CPU and memory
resources to satisfy Application and DBMS needs.
• The Networks should provide fast communication
between Client and Server, a ...
... Resources are virtual and not tied to
A virtual resource has a GUID, globally
Use Tapestry, a decentralized object
location and routing system
Scalable overlay network, built on TCP/IP
In computer science, storage virtualization uses virtualization to enable better functionality and more advanced features in computer data storage systems.Broadly speaking, a ""storage system"" is also known as a storage array or disk array or a filer. Storage systems typically use special hardware and software along with disk drives in order to provide very fast and reliable storage for computing and data processing. Storage systems are complex, and may be thought of as a special purpose computer designed to provide storage capacity along with advanced data protection features. Disk drives are only one element within a storage system, along with hardware and special purpose embedded software within the system.Storage systems can provide either block accessed storage, or file accessed storage. Block access is typically delivered over Fibre Channel, iSCSI, SAS, FICON or other protocols. File access is often provided using NFS or CIFS protocols.Within the context of a storage system, there are two primary types of virtualization that can occur: Block virtualization used in this context refers to the abstraction (separation) of logical storage (partition) from physical storage so that it may be accessed without regard to physical storage or heterogeneous structure. This separation allows the administrators of the storage system greater flexibility in how they manage storage for end users. File virtualization addresses the NAS challenges by eliminating the dependencies between the data accessed at the file level and the location where the files are physically stored. This provides opportunities to optimize storage use and server consolidation and to perform non-disruptive file migrations.