First storage group on the microsoft exchange information store
If the warning or error count is not 0, repair again. Please try to use RSG to check the data in the backup files. Office Office Exchange Server. Not an IT pro? Sign in. United States English. Ask a question. Quick access. Search related threads. Remove From My Forums. Asked by:. Archived Forums. Sign in to vote. Hi, Let me first say that I am happy to be shown a beter way to do anything. I am doing a full, normal, overwrite backup on Sundays, then on weekdays, I am doing differential, append backups.
My problem is that even though the backups seems be running when they should, the size of the bkf file never changes.
The correct disk is one that balances performance both sequential and random with capacity, reliability, power utilization, and capital cost. The following table of supported physical disk types provides information to help you when considering these factors.
From a performance perspective, using large, slower disks for Exchange storage is okay, provided the disks can maintain an average read and write latency of 20 ms or less under load. This section provides best practice information about supported disk and array controller configurations. In addition to the commonly used Redundant Array of Independent Disks RAID , there's also just a bunch of disks or drives , or JBOD, which refers to a collection of hard disks that haven't been configured to act as a redundant array.
RAID is often used to both improve the performance characteristics of individual disks by striping data across several disks and to provide protection from individual disk failures. With the advancements in Exchange high availability, RAID isn't a required component for Exchange storage design. However, RAID is still an essential component of Exchange storage design for standalone servers and solutions that require storage fault tolerance.
The recommended configuration for an operating system, system, or pagefile volume is to use RAID technology to protect this data type. If you're deploying a standalone Mailbox server role architecture, RAID technology is required for the mailbox database and log volumes. RAID-6 configurations should have array controller high-priority scrubbing and surface scanning enabled.
Although JBOD is supported in high availability architectures that have three or more highly available database copies, because the log and mailbox database volumes are separated, JBOD isn't recommended as a solution.
Mailbox database and log volume co-location are not recommended in standalone architectures. In high availability architectures, there are two possibilities for this scenario:. In an Exchange environment, a JBOD storage solution involves having both the database and its associated logs stored on a single disk. To deploy a JBOD solution, you must deploy a minimum of three highly available database copies. Using a single disk is a single point of failure, because when the disk fails, the database copy residing on that disk is lost.
Having a minimum of three database copies ensures fault tolerance by having two additional copies if one copy or one disk fails. However, placement of three highly available database copies, and the use of lagged database copies, can affect storage design. If mixing lagged copies on the same server hosting highly available database copies for example, not using dedicated lagged database copy servers , you need at least two lagged database copies.
For the secondary datacenter servers to use JBOD, you should have at least two highly available database copies in the secondary datacenter. The loss of a copy in the secondary datacenter won't result in requiring a reseed across the WAN or having a single point of failure in the event the secondary datacenter is activated.
If mixing lagged database copies on the same server hosting highly available database copies for example, not using dedicated lagged database copy servers , you need at least two lagged database copies.
For dedicated lagged database copy servers, you should have at least two lagged database copies within a datacenter to use JBOD. Otherwise, the loss of disk results in the loss of the lagged database copy, and the loss of the protection mechanism. Multiple databases per volume are a new JBOD scenario available in Exchange that allows for active and passive copies including lagged copies to be mixed on a single disk, enabling better disk utilization.
However, to deploy lagged copies in this manner, automatic lagged copy log file play down must be enabled. The following table shows guidelines for JBOD considerations for multiple databases per volume. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info.
Contents Exit focus mode. Product s : Backup Exec. This error can occur on full, differential, or incremental backup types. In addition to the failure, a debug of the local Remote Agent service will display one of the following errors:. Related Knowledge Base Articles V : How to troubleshoot backup jobs that fail with the error message " Final error: 0xeaf - The directory or file was not found, or could not be accessed ".
Was this content helpful? The Managed Store also uses a static database caching mechanism that replaces the dynamic buffer algorithm in previous versions of Exchange. The multi-process model that's used by the Managed Store consists of the following processes on the Mailbox server:.
A single store service controller process for the whole Exchange server Microsoft. One worker process for each mounted database Microsoft. When a database is mounted, a new worker process is instantiated that services only that database.
When a database is dismounted, the worker process for that database is terminated. For example, if you have 40 mailbox databases mounted on a Mailbox server, there will be 41 processes running for the Managed Store: one for each database, and one for the store service process controller. The store process controller monitors the health of all store worker processes on the server. A forcible or unexpected termination the Microsoft.