HP StoreOnce D2D4324 HP StoreOnce Backup System Concepts and Configuration Gui - Page 76
HP StoreOnce Linux and UNIX Configuration, Guide
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• Each NAS share has a 25,000 file limit, some backup applications create large numbers of small control files during backup to disk. If this is the case , it may be necessary to create additional shares and distribute the backup across multiple shares. • Disable software compression, deduplication and synthetic full backups. • Do not pre-allocate disk space for backup files within the backup application. • Best throughput is achieved with multiple streams, the actual number per device/appliance varies by model. • For NFS shares ensure the correct mount options are used to ensure in-order delivery and provide better deduplication ratios. See the HP StoreOnce Linux and UNIX Configuration Guide for specific details. • Configure bonded network ports for best performance. • Monitor the number of files created in the share at regular intervals as there is a 25,000 file limit per share • For CIFS shares the recommended implementation is using AD authentication (see later) • For NFS shares there is a specific mount option which ensures all data to the NFS share is sent "in order" - which enables the best deduplication ratio. The name of the mount option varies according to the operating system; some operating systems also require an update package to be installed to enable this. See the HP StoreOnce Linux and UNIX Configuration Guide for more details. 76 NAS shares
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