What is snap mirror in NetApp?
SnapMirror is a feature of Data ONTAP that enables you to replicate data. SnapMirror enables you to replicate data from specified source volumes or qtrees to specified destination volumes or qtrees, respectively. You can use SnapMirror to replicate data within the same storage system or with different storage systems.
What is difference between SnapMirror and SnapVault?
SnapMirror is disaster recovery technology, designed for failover from primary storage to secondary storage at a geographically remote site. SnapVault is archiving technology, designed for disk-to-disk Snapshot copy replication for standards compliance and other governance-related purposes.
How does SnapVault work in NetApp?
SnapVault is a disk-based storage backup feature of Data ONTAP. SnapVault enables data stored on multiple systems to be backed up to a central, secondary system quickly and efficiently as read-only Snapshot copies. SnapVault Snapshot copies capture the state of primary qtree data on each primary system.
What is NetApp Snapshot?
What is a NetApp Snapshot Copy? A NetApp Snapshot copy simply manipulates block pointers, creating a “frozen” read-only view of a WAFL volume that lets applications access older versions of files, directory hierarchies, and/or LUNs (logical unit numbers) without special programming.
What is snap mirror replication?
The SnapMirror engine is used to replicate data from a source volume to a destination volume. It’s used for these features: Load Sharing Mirrors. Data Protection Mirrors. SnapVault.
How does snap mirror work?
The SnapMirror feature performs the following operations:
- Creates a Snapshot copy of the data on the source volume.
- Copies it to the destination, which can be a read-only volume or qtree.
- Updates the destination to reflect incremental changes on the source, as per the schedule you specify.
What is SnapVault and SnapMirror in NetApp?
What is storage replication?
Storage Replica is Windows Server technology that enables replication of volumes between servers or clusters for disaster recovery. Synchronous replication mirrors data within a low-latency network site with crash-consistent volumes to ensure zero data loss at the file-system level during a failure.
What is SnapVault storage?
SnapVault is a disk-based storage backup feature of Data ONTAP. SnapVault enables data stored on multiple storage systems to be backed up to a central, secondary storage system quickly and efficiently as read-only Snapshot copies.
What is quota in NetApp?
Quotas provide a way to restrict or track the disk space and number of files used by a user, group, or qtree. You specify quotas using the /etc/quotas file.
What is a LUN in NetApp?
A LUN is a logical representaion of storage. It looks like a hard disk to the client. It looks like a file inside of a volume. You can see the Data ONTAP ‘Block Access Management Guide for iSCSI and FC’ for documentation.
What is DP and XDP in NetApp?
“DP” are block-based and uses BRE (Block Replication Engine) “All the rest of it”, (file-based) i.e XDP, SnapVault and version independent SnapMirror uses LRE (Logical Replication Engine) BRE (suited for disaster type of scenario) = Tracks each “block” and is unaware of file-system structure.
