Version 6.0.003169 introduced the following
features and enhancements. For more information and detailed instructions
about using these features, refer to the Dell
Storage Manager Administrator’s Guide.
Multitenancy
Multitenancy enables a single physical FluidFS cluster to be connected
to several separated environments and manage each environment separately.
FluidFS v6 supports up to 100 tenants.
Multitenancy
Data Access – Access through a VIP enumerates the SMB shares and NFS
exports that belong to the tenant and connect to these shares and
exports. Each tenant has separate access control settings, including
the ability to join the same or separate Active Directory domains.
Multitenancy and Data Protection – When the multitenancy
feature is enabled on the local or partner systems, the global administrator
has the ability to create a partner relation between the tenants on
the source system and tenants on the remote system.
NOTE The NAS Volume
Subnet Restriction feature has been deprecated starting in
FluidFS v6. Use the multitenancy feature instead to restrict access
to NAS Volumes.
SMB3.1 and SMB3.1.1
SMB protocol 3.1.1 dialect adds pre-authentication integrity, cipher
negotiation, AES-128-GCM cipher and cluster dialect fencing. Pre-authentication
integrity improves protection from an attacker in tampering with SMB’s
connection establishment and authentication of messages. The cipher
can now be negotiated during connection establishment. In addition
to AES-128-CCM cipher used at SMB 3.0.x, Windows 10 (and Windows Server
2016) added AES-128-GCM cipher in SMB 3.1.1. The GCM mode offers a
significant performance gain.
SMB3 Multi-Channel
FS8600 supports multi-channel for SMB 3.x clients (Windows 8 and
later, Windows Server 2012 and later). This feature allows clients
to create multiple TCP connections for a single SMB session. Multi-channel
can improve performance by increasing the number of commands the client
can transmit simultaneously, and by allowing clients to use multiple
physical network interfaces. Administrators must enable SMB3.0 multi-channel
if they want clients to be able to use it, as it might increase the
number of TCP connections. Administrators should enable it only after
verifying that the current SMB sessions are not near the supported
limit for their FS8600 cluster.
SMB3 Dynamic Access
Control
SMB3 dynamic access control enables administrators
to apply access-control permissions and restrictions based on well-defined
rules that can include the sensitivity of the resources, the job or
role of the user, and the configuration of the device that is used
to access these resources. Dynamic access provides tools for administrators
to define privileges in a more compact way than traditional ACEs.
NOTE Dynamic access control
is supported in Windows Server 2012 and Windows 8 operating systems
only.
SMB Change Notify Full
Support
WATCH TREE requests enable clients,
such as IIS, to cache SMB share contents locally, improving performance.
Changes to the following subscription types now trigger
change notifications to the subscriber:
Attributes – Any attribute change on any file or
directory inside the subscribed folder
Size – Any file size change (change in file size when
the file is actually written to the disk
Last write – mtime change
Last access – atime change
Creation – Create time change
Security – Security-descriptor change (SetACL with
DACL/SASL, SetOwner, SetGoup)
Stream name – Alternate data stream name is added
Stream size – Alternate data stream size change
Stream write – Alternate data stream write operation
NOTE
These new change notifications are disabled by default.
NAS administrators can enable or disable change notification settings
using the CLI. If the new change notifications are left disabled,
changes will trigger a generic notification to clients.
NAS administrators have per-NAS volume option to enable
or disable recursive notifications.
NFSv4 Advisory Locks
FluidFS NFSv4 supports mandatory byte-range locks. With multitenancy
enabled, NAS administrators can configure NFSv4 to switch from mandatory
to advisory locks at the tenant level using the CLI.
FTP and FTPS User Authentication
and Encryption
Starting with FluidFS v6, anonymous access to
FTP and FTPS is disabled by default. Only authenticated users can
log in. If you are updating from FluidFS v5, with active FTP or FTPS
and landing directory, you will still be able to access FTP and FTPS
as anonymous like before.
NAS administrators can enable
anonymous FTP and FTPS access per tenant, using the CLI. When authenticated
using the user name and password, the connection is encrypted.
Display More Details
On Connected SMB Sessions
NAS administrators have the ability
to list currently opened SMB sessions to monitor users activities
on the cluster. Session information includes a protocol version, Controller
ID, User, Client IP, number of open files, connected time, idle time,
whether the session is a guest session, and the connected VIP. FluidFS
v6 adds the following session information for performance analysis
and security verification:
Whether the user session client-server communication
is signed
Whether the user session client-server communication
encrypted
Whether the user session is negotiated with multi-channel
ability
SMB and NFS Version
Configuration
Version 6.0.140010, enables you to configure
supported SMB and NFS versions, including disabling SMB1 connections.
One To Many and Cascaded
Replication
This feature enables users to create more complicated
replication topologies, enhancing their disaster recovery options:
The same NAS volume can be replicated simultaneously
to multiple destinations.
Data can be cascaded from the production cluster
to a secondary cluster, and replicated from the secondary . This option
reduces the load on the production cluster.
These two options can be used together in order to comply with
the organization’s disaster recovery topology and requirements
Replication WAN Optimization
When enabled, this feature optimizes replication by reducing bandwidth
consumption. Data is deduplicated and compressed during replication
without impacting the cluster performance.
Active Directory Organizational
Unit
NAS administrators can specify the organizational unit
when joining any organizational units inside an Active Directory domain.
This feature is beneficial for users who use organizational units
inside the Active Directory domain to manage their accounts.
Control Local Account
UID and GID
NAS Administrators have the ability to define and
display local users UIDs and local groups GIDs using the following
CLI commands:
CLI> client-access authentication local-users
list
CLI> client-access authentication local-groups
list
Metadata Tiering
Metadata tiering provides the ability to store data and metadata
in different storage tiers . When creating or expanding a NAS pool,
administrators can specify the Storage Center tiers to use for data
and metadata. The NAS administrator has the option to optimize the
setting for metadata-intensive I/O patterns, which allocates a larger
portion of the NAS pool for metadata than the non-optimized setting.
128 TB Files
The size of files supported by FluidFS has increased from 16 TB to
128 TB, starting with this release.
SNMP v3
FluidFS
supports SNMP v3 (read requests) and v2, but does not support using
both versions at the same time. SNMP v3 requires user authentication.
Automated Scheduled
Reports
Administrators can schedule reports in Dell Storage
Manager for system capacity, performance, load-balancing, and NAS
volume content statistics.
Statistics on NAS Volume
Contents
FluidFS v6 provides statistics about files, based
on their size and age.
Improved Protocols
and File Access Diagnostics
Improve support process for administrators
handling data-access issues.
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