Dell EMC Isilon, Configuration Manual, Page: 21 / 24

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</chunk_files>
5. Save the
RecorderConfig.xml
file.
6. Restart your recording server.
Isilon OneFS for the Archive DB
Configure XProtect to use an Isilon cluster for the Archive DB.
Refer to the Dell EMC Isilon Storage with Video Management Systems: Configuration
Guide to configure the following with Isilon OneFS:
l
Configure SmartConnect and Domain Name System (DNS)
l
Configure SmartQuotas
OneFS 8.1 job workers (required)
OneFS can be tuned to provide optimal bandwidth, performance, or operating
characteristics. Starting with OneFS 8.1 the Dell EMC Surveillance Lab achieved
optimum resilience when the number of job workers slowly increased their number per
job phase.
From the CLI to modify the job works to 0 per core:
isi_gconfig -t job-config impact.profiles.medium.workers_per_core=0
Multipathing and NIC failures
Configure the Unity and SC block storage arrays with multiple paths to recorders
using Microsoft MPIO. For redundancy, configure multiple NICs with the recorders
and controllers. Recorders that are configured with multipathing reconnect to the
volume across another available path after a NIC failure.
The TCP Max transmissions value determines how many times the Transmission
Control Protocol (TCP) retransmits an unacknowledged data segment on an existing
connection. The TCP retransmits data segments until they are acknowledged or until
this value expires.
TCP/IP adjusts the frequency of retransmissions over time. The TCP establishes an
initial retransmission interval by measuring the round trip time on the connection. This
interval doubles with each successive retransmission on a connection, and it is reset to
the initial value when responses resume.
To reduce the reconnection time and eliminate video loss, adjust the following TCP
retransmission timers:
Note
It is recommended that you perform a backup before editing registry settings.
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip
\Parameters
Value Name: TcpMaxDataRetransmissions
Data Type: REG_DWORD - Number
XProtect-specific configuration
Isilon OneFS for the Archive DB 21