<ul><ul><ul><ul><li>NETWORK STORAGE </li></ul></ul></ul></ul>
NAS <ul><li>A network-attached storage ( NAS ) device is a server that is dedicated to nothing more than file sharing ....
NAS <ul><li>With a NAS device, storage is not an integral part of the server. </li></ul><ul><li>Instead, in this storage-...
NAS <ul><li>NAS systems usually contain one or more hard disks, often arranged into logical, redundant storage containers ...
NAS <ul><li>NAS devices become logical file system storage for a local area network. </li></ul><ul><li>The performance of...
NAS <ul><li>NAS allows multiple server access through a file-based protocol. This allows administrators to implement simpl...
Specs <ul><li>Intel P4 3.0Ghz </li></ul><ul><li>1GB ECC DDR RAM </li></ul><ul><li>Microsoft Windows Storage Server 2003 </...
NAS <ul><li>Simple right? Storing stuff is easy. Storing large amounts of stuff is easy. Backing it up sometimes is not...
NAS <ul><li>http://www1.us.dell.com/content/products/compare.aspx/tapeb_sing?c=us&cs=04&l=en&s=bsd#tn1 </li></ul>
NAS backups <ul><li>Full file system image backup of all files within a NAS file system. </li></ul><ul><ul><li>How many t...
NAS backups <ul><li>Differential file system image backup of all files that have changed since the last full image backup....
SANS <ul><li>A SAN, or Storage Area Network, is similar to NAS, but instead of being on the network, a SAN is generally on...
SANs <ul><li>SANS tend to be much larger scale than NAS solutions. </li></ul><ul><li>Utilizing its own network to intercon...
SANs <ul><li>SANs can provide many benefits.  </li></ul><ul><li>Centralizing data storage operations and their management...
SANs <ul><li>SANs can be based upon several different types of high-speed interfaces.  In fact, many SANs today use a comb...
SANs <ul><li>Additionally, SCSI interfaces are frequently used as sub-interfaces between internal components of SAN member...
SANs <ul><li>Can hold a massive amount of drives ( http://www1.us.dell.com/content/products/compare.aspx/sanet_fibre?c=us&...
of 17

NAS, SANs and Network storage

Published on: Mar 3, 2016
Source: www.slideshare.net


Transcripts - NAS, SANs and Network storage

  • 1. <ul><ul><ul><ul><li>NETWORK STORAGE </li></ul></ul></ul></ul>
  • 2. NAS <ul><li>A network-attached storage ( NAS ) device is a server that is dedicated to nothing more than file sharing . </li></ul><ul><li>NAS does not provide any of the activities that a server in a server-centric system typically provides, such as e-mail, authentication or file management . </li></ul><ul><li>NAS allows more hard disk storage space to be added to a network that already utilizes servers without shutting them down for maintenance and upgrades. </li></ul>
  • 3. NAS <ul><li>With a NAS device, storage is not an integral part of the server. </li></ul><ul><li>Instead, in this storage-centric design, the server still handles all of the processing of data but a NAS device delivers the data to the user. </li></ul><ul><li>A NAS device does not need to be located within the server but can exist anywhere in a LAN and can be made up of multiple networked NAS devices. </li></ul>
  • 4. NAS <ul><li>NAS systems usually contain one or more hard disks, often arranged into logical, redundant storage containers or RAID arrays. </li></ul><ul><li>The protocol used with NAS is a file based protocol such as NFS, Samba or Microsoft's Common Internet File System (CIFS). </li></ul><ul><li>In reality, there is a miniature operating system on the device such as Celerra on EMC's devices or NetOS on NetApp NAS devices. </li></ul>
  • 5. NAS <ul><li>NAS devices become logical file system storage for a local area network. </li></ul><ul><li>The performance of NAS devices depends heavily on cached memory (the equivalent of RAM) and network interface overhead (the speed of the router and network cards. The benefit is that the device can become a giant neighborhood hard drive for a whole building. The disadvantage is that any constrictions in the local network will slow down the resulting access time.) </li></ul>
  • 6. NAS <ul><li>NAS allows multiple server access through a file-based protocol. This allows administrators to implement simple and low cost load-balancing and fault-tolerant systems. </li></ul><ul><li>For example: </li></ul><ul><ul><li>Corporate e-mail system with multiple, load-balanced webmail servers </li></ul></ul><ul><ul><li>Load-balanced web servers access the same contents from NAS storage </li></ul></ul>
  • 7. Specs <ul><li>Intel P4 3.0Ghz </li></ul><ul><li>1GB ECC DDR RAM </li></ul><ul><li>Microsoft Windows Storage Server 2003 </li></ul><ul><li>RAID 0, 1, 5 and JBOD </li></ul><ul><li>4 x 250GB Serial ATA-150 Hot Swap, Hard Disk Drive, 7200RPM, 8MB Cache </li></ul><ul><li>Dual Auto Sensing Gigabit Ethernet Ports 10/100/1000, RJ-45 Connector, with Teaming and Load Balancing </li></ul>
  • 8. NAS <ul><li>Simple right? Storing stuff is easy. Storing large amounts of stuff is easy. Backing it up sometimes is not. </li></ul><ul><li>Often times, the backup solution is more expensive than the storage solution. </li></ul>
  • 9. NAS <ul><li>http://www1.us.dell.com/content/products/compare.aspx/tapeb_sing?c=us&cs=04&l=en&s=bsd#tn1 </li></ul>
  • 10. NAS backups <ul><li>Full file system image backup of all files within a NAS file system. </li></ul><ul><ul><li>How many tapes? </li></ul></ul><ul><ul><li>How long? </li></ul></ul>
  • 11. NAS backups <ul><li>Differential file system image backup of all files that have changed since the last full image backup. </li></ul><ul><li>How much of savings is this? </li></ul>
  • 12. SANS <ul><li>A SAN, or Storage Area Network, is similar to NAS, but instead of being on the network, a SAN is generally on it’s OWN network. </li></ul>
  • 13. SANs <ul><li>SANS tend to be much larger scale than NAS solutions. </li></ul><ul><li>Utilizing its own network to interconnect storage related resources without clogging a network. </li></ul>
  • 14. SANs <ul><li>SANs can provide many benefits.  </li></ul><ul><li>Centralizing data storage operations and their management is certainly one of the chief reasons that SANs are being specified and deployed today.  </li></ul><ul><li>Administrating all of the storage resources in high-growth and mission-critical environments can be daunting and very expensive.  SANs can dramatically reduce the management costs and complexity of these environments while providing significant technical advantages. </li></ul>
  • 15. SANs <ul><li>SANs can be based upon several different types of high-speed interfaces.  In fact, many SANs today use a combination of different interfaces.  </li></ul><ul><li>Currently, Fibre Channel serves as the de facto standard being used in most SANs.  Fibre Channel is an industry-standard interconnect and high-performance serial I/O protocol that is media independent and supports simultaneous transfer of many different protocols.  </li></ul>
  • 16. SANs <ul><li>Additionally, SCSI interfaces are frequently used as sub-interfaces between internal components of SAN members, such as between raw storage disks and a RAID controller. </li></ul><ul><li>SATA is actually becoming popular in this role as well. </li></ul>
  • 17. SANs <ul><li>Can hold a massive amount of drives ( http://www1.us.dell.com/content/products/compare.aspx/sanet_fibre?c=us&cs=555&l=en&s=biz ) </li></ul>

Related Documents