dhcp--its a network service that enable host computer to be automatically assign setting from server as opposed manualy configuring each n/w host.
dns--on the internet dns will automatically convert b/n the name we type in address bar to the ip address and vice versa
DBMS --it is the structured way to store the data in logically organised table that are interrelated. or its the collection of computer program
TAKEOVER--It is the process inwhich a node takes over the storage of its partner.
GIVEBACK--It is the process in which that returned to the partner.
flash cache--controller based pci card,plug and play device and its support all protocol.
-- assigned to node
-- cache type is read only
Flash pool-- storage level raid protectd cache and specific to aggregate
-- it reduce the latency,low cost and it increase th IO operation up to 75%
-- cache type is read and write
SAN
========
Storage area network,iscsi,fcp and fcoe,block level n/w acess to the storage, dedicated n/w required,
NAS
========
Network attached storage,file level sharing,support nfs and cifs,no dedicated network,data transmission thru ethernet,flexibility,scalability
7 mode==== single ha pair, no scalability,controller fail over
cluster mode====== we can use multiple ha pair,scalable,san for 4 and nas for 12ha pair, storage fail over , junction path is he new technology used for mounting
cifs==common internet file s/m=for windows,user level security,section oriented and every time authentication required
nfs===network file s/m=unix based, host level security ,section less, and authentication not required in every time.
==============================================
snap mirror==its the feature of data ontap,that enable replicate the data from specific source volume to specific destination
license reuired,we snapmirror same storage or different storage
snap vault==disk based storage backup on data ontap,license required.it enable data stored in multiple s/m to be backed up to cntral location
Thick volumes==are created with the entire size of the volume pre-allocated on physical storage at the time the volume is created.
This pre-allocation means that creating a 100 GiB volume actually consumes 100 GiB of allocated capacity on your drives.
However, the space might remain unused, causing under-utilization of storage capacity.
Thin Volume ===the capacity is allocated as the data is being written to the volume. You can create thick volumes from either a pool or volume group
deduplication==removing duplicate blocks in the FlexVol volume.
Crontab--The cron daemon is a long-running process that executes commands at specific dates and times.
You can use this to schedule activities, either as one-time events or as recurring tasks.
minute-- hr- day of month-- month of year --day of week cmd to be executed
=========================================================
1. There is no direct answer for this question but we shall do it in several way.
If volume/lun present in ATA/SATA harddisk aggregate, then the volume can be migrated to FC/SAS disk aggregate. Either you can use flash cache to improve performance.
2. For NFS/CIFS instead of accessing from single interface, multi mode vif can be configured to get better bandwidth and fault tolerance.
3. Always advised to keep aggr/vol utilization below 90%.
4. Avoid doing multiple volume backup in single point of time.
5. Aggr/volume/lun reallocation can be done to re–distribute the data to multiple disk for better striping performance.
6. Schedule scrubbing and De-duplication scanning after business hours.
7. Create multiple loops and connect different types of shelf’s to each loop
8. Avoid mixing up different speeds of disk and different types of disk in a same aggregate.
9. Always keep sufficient spare disk to replace in case of disk failure. Because reconstruction time will take more time and cause negative performance.
10. Keep the advised version of firmware/software which is recommended by Netapp.
The Network Module | Manages networking, NFS, and CIFS | Speaks:–TCP/IP and UDP/IP–NFS and CIFS–Spin
The SCSI Module | Manages networking, FC, Fibre Channel over Ethernet (FCoE), and iSCSI| Speaks: –FC–SCSI–SpinNP–TCP/IP
The Data Module | Manages the WAFL (Write Anywhere File Layout) file system, RAID, and storage | Speaks:–SpinNP–FC and SAS to disk and tape devices.
The network module: –Is called the “N-blade”–Provides NAS protocols
?The SCSI module:–Is called the “SCSI-blade”–Provides SAN protocols
?The data module: –Is called the “D-blade”–Provides storage access to shelves (WAFL file system, RAID subsystems, and storage shelves subsystems)
---------------------------
TheCSM Provides a communication mechanism between any network or SCSI module and any data module
Provides a reliable transport for SpinNP traffic
Is used regardless of whether the network or SCSI module and the data module are on the same node oron different node
Vmotion: Moving Running virtual machines from one esx host to another
SVmotion: Moving running vm disk file from one shared storage to another shared storage
DRS: It balance the m load across thr hosts in the cluster, whenever insufficient resource is over esx host vms are migrate from this host to another host
HA: Continous availabilty, VC allows vm to migrate & restart on another Esx host when host fails.
login vc, click DC, select new cluster, 2 options one HA &DRS
===============
Service Profile: nothing but esx host.
dns--on the internet dns will automatically convert b/n the name we type in address bar to the ip address and vice versa
DBMS --it is the structured way to store the data in logically organised table that are interrelated. or its the collection of computer program
TAKEOVER--It is the process inwhich a node takes over the storage of its partner.
GIVEBACK--It is the process in which that returned to the partner.
flash cache--controller based pci card,plug and play device and its support all protocol.
-- assigned to node
-- cache type is read only
Flash pool-- storage level raid protectd cache and specific to aggregate
-- it reduce the latency,low cost and it increase th IO operation up to 75%
-- cache type is read and write
SAN
========
Storage area network,iscsi,fcp and fcoe,block level n/w acess to the storage, dedicated n/w required,
NAS
========
Network attached storage,file level sharing,support nfs and cifs,no dedicated network,data transmission thru ethernet,flexibility,scalability
7 mode==== single ha pair, no scalability,controller fail over
cluster mode====== we can use multiple ha pair,scalable,san for 4 and nas for 12ha pair, storage fail over , junction path is he new technology used for mounting
cifs==common internet file s/m=for windows,user level security,section oriented and every time authentication required
nfs===network file s/m=unix based, host level security ,section less, and authentication not required in every time.
==============================================
snap mirror==its the feature of data ontap,that enable replicate the data from specific source volume to specific destination
license reuired,we snapmirror same storage or different storage
snap vault==disk based storage backup on data ontap,license required.it enable data stored in multiple s/m to be backed up to cntral location
Thick volumes==are created with the entire size of the volume pre-allocated on physical storage at the time the volume is created.
This pre-allocation means that creating a 100 GiB volume actually consumes 100 GiB of allocated capacity on your drives.
However, the space might remain unused, causing under-utilization of storage capacity.
Thin Volume ===the capacity is allocated as the data is being written to the volume. You can create thick volumes from either a pool or volume group
deduplication==removing duplicate blocks in the FlexVol volume.
Crontab--The cron daemon is a long-running process that executes commands at specific dates and times.
You can use this to schedule activities, either as one-time events or as recurring tasks.
minute-- hr- day of month-- month of year --day of week cmd to be executed
=========================================================
1. There is no direct answer for this question but we shall do it in several way.
If volume/lun present in ATA/SATA harddisk aggregate, then the volume can be migrated to FC/SAS disk aggregate. Either you can use flash cache to improve performance.
2. For NFS/CIFS instead of accessing from single interface, multi mode vif can be configured to get better bandwidth and fault tolerance.
3. Always advised to keep aggr/vol utilization below 90%.
4. Avoid doing multiple volume backup in single point of time.
5. Aggr/volume/lun reallocation can be done to re–distribute the data to multiple disk for better striping performance.
6. Schedule scrubbing and De-duplication scanning after business hours.
7. Create multiple loops and connect different types of shelf’s to each loop
8. Avoid mixing up different speeds of disk and different types of disk in a same aggregate.
9. Always keep sufficient spare disk to replace in case of disk failure. Because reconstruction time will take more time and cause negative performance.
10. Keep the advised version of firmware/software which is recommended by Netapp.
The Network Module | Manages networking, NFS, and CIFS | Speaks:–TCP/IP and UDP/IP–NFS and CIFS–Spin
The SCSI Module | Manages networking, FC, Fibre Channel over Ethernet (FCoE), and iSCSI| Speaks: –FC–SCSI–SpinNP–TCP/IP
The Data Module | Manages the WAFL (Write Anywhere File Layout) file system, RAID, and storage | Speaks:–SpinNP–FC and SAS to disk and tape devices.
The network module: –Is called the “N-blade”–Provides NAS protocols
?The SCSI module:–Is called the “SCSI-blade”–Provides SAN protocols
?The data module: –Is called the “D-blade”–Provides storage access to shelves (WAFL file system, RAID subsystems, and storage shelves subsystems)
---------------------------
TheCSM Provides a communication mechanism between any network or SCSI module and any data module
Provides a reliable transport for SpinNP traffic
Is used regardless of whether the network or SCSI module and the data module are on the same node oron different node
Vmotion: Moving Running virtual machines from one esx host to another
SVmotion: Moving running vm disk file from one shared storage to another shared storage
DRS: It balance the m load across thr hosts in the cluster, whenever insufficient resource is over esx host vms are migrate from this host to another host
HA: Continous availabilty, VC allows vm to migrate & restart on another Esx host when host fails.
login vc, click DC, select new cluster, 2 options one HA &DRS
===============
Service Profile: nothing but esx host.
