Dell Compellent Fs8600 FluidFS Version 6.0 Release Notes User Manual Fluid FS Notes2 En Us

User Manual: Dell dell-compellent-fs8600 - Dell FluidFS Version 6.0 Release Notes

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Dell FluidFS Version 6.0

Release Notes

The Dell NAS appliances leverage the Dell Fluid File System (FluidFS) and the Dell Storage Center SAN to provide le storage to

clients using the SMB, NFS, or FTP protocols. FluidFS version 6.0.110054 xes issues that were present in the previous release.

Revision History

Document number: 680-115-002

Revision Date Description

A February 2017 Initial release of FluidFS v6.0.003169

B July 2017 Maintenance release v6.0.110054

Contents

FluidFS Version 6.0 Compatibility Requirements.......................................................................................................................1

Related Publications................................................................................................................................................................2

FluidFS Version 6.0 New Features and Enhancements............................................................................................................2

Fixed Issues in FluidFS Version 6.0.110054...............................................................................................................................5

Fixed Issues in FluidFS Version 6.0.003169..............................................................................................................................6

Limitations in FluidFS Version 6.0............................................................................................................................................ 7

Known Issues in FluidFS Version 6.0........................................................................................................................................8

Contacting Dell....................................................................................................................................................................... 9

FluidFS Version 6.0 Compatibility Requirements

Make sure that the following requirements are met prior to using FluidFS version 6.0.

Table 1. FluidFS Version 6.0 Compatibility Requirements

Component Requirement

Supported update paths from previous

versions of FluidFS

For the supported update paths to FluidFS version 6.0, see the Dell Fluid File System

Version 6.0 Support Matrix available from dell.com/support.

NOTE: You cannot update the rmware from a version earlier than v5.0.x to

v6.0.x. You must update from v4.0.x to v5.0.x, and then to v6.0.x.

Storage Center OS Up to eight Storage Centers running version 6.5.x or later

NOTE: Storage Center OS version 6.6.1 or later is required to support 4 PB

across two or more Storage Centers.

Dell Storage Manager Dell Storage Manager 2016 R3.1 or later

NOTE: Dell recommends updating to the latest supported Dell Storage Manager

version before updating the FluidFS software.

Document Number: 680-115-002

Rev. B

2017 - 07

Component Requirement

Supported platform FS8600

Related Publications

The publications listed in the following sections comprise the core Dell FluidFS documentation set. These publications are sorted by

target audience.

Documents for Dell Customers

•Dell Storage Manager Administrator’s Guide – Provides information about using the Dell Storage Manager software to manage

FS appliances, and provides information about FS appliance monitoring and troubleshooting.

•Dell FluidFS Version 6.0 CLI Reference Guide – Provides information about the FS command-line interface.

•Dell FluidFS Version 6.0 Firmware Update Guide – Provides information about updating the FluidFS software from version 5.0

and v5.0 service packs to v6.0.

•Dell Storage Manager Installation Guide – Provides information about installing and conguring the Dell Storage Manager Data

Collector and Dell Storage Manager Client.

•Dell Storage Manager Release Notes – Provides information about Dell Storage Manager releases, including new features and

enhancements, open issues, and resolved issues.

Documents for Dell Installers and Certied Business Partners

•Dell FluidFS Version 6.0 FS8600 Appliance Pre-Deployment Requirements – Provides a checklist that assists in preparing to

deploy an FS8600 appliance before a Dell installer or certied business partner arrives onsite to perform an FS8600 appliance

installation.

•Dell FluidFS Version 6.0 FS8600 Appliance Deployment Guide – Provides information about deploying an FS8600 appliance,

including cabling the appliance to one or more Storage Centers and the network, and deploying the appliance using the Dell

Storage Manager software.

•Dell FS8600 Appliance Service Guide – Provides information about FS8600 appliance hardware, system component

replacement, and system troubleshooting.

•Dell NAS Appliance SFP+ Replacement Procedure – Provides information about replacing SFP+ transceivers on an inactive

system.

•Dell FluidFS FS8600 Appliance 1Gb to 10Gb Upgrade Procedure – Provides information about upgrading a Fibre Channel FS8600

appliance from 1Gb Ethernet client connectivity to 10Gb Ethernet client connectivity.

FluidFS Version 6.0 New Features and Enhancements

Version 6.0.003169 introduces 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.

2Dell FluidFS Version 6.0 Release Notes

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 oers a signicant

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-dened

rules that can include the sensitivity of the resources, the job or role of the user, and the conguration of the device that is used to

access these resources. Dynamic access provides tools for administrators to dene 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 notications to the subscriber:

• Attributes – Any attribute change on any le or directory inside the subscribed folder

• Size – Any le size change (change in le size when the le 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 notications are disabled by default. NAS administrators can enable or disable change notication

settings using the CLI. If the new change notications are left disabled, changes will trigger a generic notication to clients.

• NAS administrators have per-NAS volume option to enable or disable recursive notications.

NFSv4 Advisory Locks

FluidFS NFSv4 supports mandatory byte-range locks. With multitenancy enabled, NAS administrators can congure NFSv4 to

switch from mandatory to advisory locks at the tenant level using the CLI.

Dell FluidFS Version 6.0 Release Notes 3

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 les, 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 verication:

• 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

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 benecial 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 dene and display local users UIDs and local groups GIDs using the following CLI commands:

•CLI> client-access authentication local-users view Administrator

•CLI> client-access authentication local-groups view Administrators

To display UID or GID columns in the CLI:

•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 dierent 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.

4Dell FluidFS Version 6.0 Release Notes

128 TB Files

The size of les 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 les, based on their size and age.

Improved Protocols and File Access Diagnostics

Improve support process for administrators handling data-access issues.

Fixed Issues in FluidFS Version 6.0.110054

This following issues were xed in FluidFS v6.0.110054:

Table 2. Fixed Issues in FluidFS Version 6.0.110054

Area Description

Account Management and

Authentication

The preferred Domain Controller setting was not strictly enforced.

Duplicate iSCSI IP addresses were falsely reported on multiple-appliance iSCSI systems.

Data Protection Following a Firmware update from v5 to v6, incremental NDMP backups failed frequently.

NetVault backups could not be partially restored after a rmware update to version

5.0.300109.

SACL events were not displayed in Dell Storage Manager, but could be seen when using

the CLI.

In rare cases, replication from FluidFS v5 to FluidFS v6 failed.

Creating duplicate share names was not always rejected.

Copying or cloning les using VAAI might not have worked on non-default tenants.

Quota directory did not apply size change following a NFSv4 move operation.

When a hard quota was exceeded, writes to existing le was truncated but did not

generate an error.

User started Dell Storage Manager in English and switched to another language. After

resizing a NAS volume, displaying NAS volumes generated a non-English popup message.

User could not edit folder security permissions using Dell Storage Manager 2016 R3.

Sometimes, snapshots could not be deleted using the GUI or the CLI.

System Management The standby controller did not reattach to the cluster after replacement.

The cluster status wrongly showed critical when the Admin subnet state was enabled

or restricted, but was congured to use the client network.

Dell FluidFS Version 6.0 Release Notes 5

Area Description

During a battery calibration cycle, the following alert was falsely generated: BPS on NAS

controller X is not operating properly. Battery reports failed

state.

After a Firmware update to v6, the following event was falsely generated: The forced

battery cycle in NAS controller X is no longer required.

After a Firmware update to v6, capacity trends and statistics only showed 48 hours of

historical data.

Fixed Issues in FluidFS Version 6.0.003169

This following issues were xed in FluidFS v6.0.003169:

Table 3. Fixed Issues in FluidFS Version 6.0.003169

Area Description

Account Management and

Authentication

Dell Storage Manager listed NAS volumes for each volume folder in inconsistent or random

order.

Data Protection Scheduled replications dened from Dell Storage Manager did not adhere to Quality of

Service (QoS) denitions.

Data Protection If the NDMP backup user’s password contained a single quote (‘), NDMP conguration

modication hung.

Data Protection NDMP snapshot creation failed when the NAS volume name contained spaces.

Data Protection IBM Tivoli Storage Manager NDMP DMA randomly failed during a job restore operation.

Maintenance Frequent power down activity might have prevented the cluster from starting up.

Maintenance If the Add Appliance procedure failed, the appliance could not be deleted.

Maintenance When renaming a UNIX le to the same name with dierent (upper/lower) case, Windows

listed the le name with extra characters.

Maintenance Access to les originated in FluidFS v2 was denied, specically if les pointed to hard links

where the original entry was deleted.

Maintenance Windows sessions using continuous availability did not always fail back from node1 to

node0 after a failover.

Maintenance Removing virtual IPs using Dell Storage Manager or the CLI did not aect actual system

conguration.

Maintenance When choosing a directory to store diagnostics output on a NAS volume, Dell Storage

Manager hung and eventually returned the following message: FluidFS

Communication Failure.

NAS Volumes, Shares, and Exports FluidFS LDAP monitoring might have impacted Active Directory systems with a large

number of users, also serving LDAP (extended schema cong), and degraded the

performance of the FluidFS system.

NAS Volumes, Shares, and Exports Cloned NAS volume root directory lost permissions.

NAS Volumes, Shares, and Exports On systems bound to LDAP, If a FluidFS system was bound to LDAP and had local users

dened, NFS4 le ownership might have displayed as nobody.

NAS Volumes, Shares, and Exports Quota usage was not updated properly when ADS les were removed.

NAS Volumes, Shares, and Exports Users could not set snapshot schedule in Dell Storage Manager if the display language was

not English.

6Dell FluidFS Version 6.0 Release Notes

Area Description

NAS Volumes, Shares, and Exports Saving Microsoft Oce les with SACL attributes resulted in the following message:

There has been a network or file permission error.

NAS Volumes, Shares, and Exports Kerberos Encryption types AES256-CTS and AES128-CTS were not supported.

NAS Volumes, Shares, and Exports NFSv4 ACL inheritance on UNIX volume did not function properly on subfolders created

from SMB clients.

NAS Volumes, Shares, and Exports Users were unable to set/get ShareLevelPermissions attributes with PowerShell API.

NAS Volumes, Shares, and Exports Copying using Finder and NFS4 did not work on Mac OSX, but it worked from terminal.

NAS Volumes, Shares, and Exports NAS pool could not be expanded in system with multiple storage arrays if new size was not

divisible by the number of storage arrays.

NAS Volumes, Shares, and Exports When trying to expand a NAS pool in a system with one controller down, the following

misleading message was generated: Controller0 cannot reach LUNs . NAS pool

expansion was not supported in degraded mode.

NAS Volumes, Shares, and Exports Restoring conguration of a volume failed if a share existed on both volumes, diering only

by share-name case letters.

Networking When the admin network MTU was set to 1500, the following false event was generated:

NAS Controller 0 Cannot reach (using jumbo frames) host node1

on admin subnet.

Networking DNS sux validation in Dell Storage Manager sometimes failed when names were valid.

Networking Users reported slow replication throughput over WAN.

System Management Dell Storage Manager and CLI use opposite terminology for Lease and Oplock settings. Dell

Storage Manager enables/disables the Leases and Oplocks, while the CLI enables/disables

restriction of Leases and Oplocks.

System Management The size-on-disk attribute for sparse les was sometimes incorrect.

Limitations in FluidFS Version 6.0

The following limitations exist in FluidFS v6.0.

Area Description

System Management When you issue the hardware NAS-appliances status <ApplianceID> CLI command, it can

take up to a minute for the information to be displayed. NIC status is not acquired directly

from the operating system but from the relevant collector service agent, which has a

polling interval of 60 seconds. Therefore, it is normal to have a one-minute delay in the CLI

after an actual status change.

System Management Do not use the following names. These names are reserved for internal FluidFS cluster

functions:

NAS Volumes (Containers)

.

..

.snapshots

acl_stream

cifs (or smb)

Dell FluidFS Version 6.0 Release Notes 7

Area Description

int_mnt

unied

Any name starting with locker_

NAS Snapshots

rep_*

rollback

current

Attempts to create or modify reserved names will be denied.

Account Management and

Authentication

FluidFS shows open les of SMB and NFSv4 protocols only. Open les for NFSv3 are not

displayed.

Account Management and

Authentication

If you have a cluster joined to Active Directory and NIS domains, the Domain drop-down

list displays the UNIX and Windows user names in dierent windows.

Account Management and

Authentication

To use Metadata tiering, you must have an even number of Storage Centers.

NAS Volumes, Shares, and Exports If you enter a value as a Unicode character string, fewer characters are accepted because

Unicode characters take up a variable number of bytes.

Maintenance Attaching a v5 controller to a v4 cluster is not supported.

Maintenance If you enter the EULA (end-user license agreement) approver name and approver title as a

Unicode character string, note that fewer characters are accepted because Unicode

characters take up a variable number of bytes.

Known Issues in FluidFS Version 6.0

The following known issues exist in FluidFS v6.0.

Table 4. Known Issues in FluidFS Version 6.0.

Area Description

System Functionality The current vSphere Web Client plugin, Compellent Integration Tools for VMware (CITV

3.1), does not support FluidFS v6 systems. A plugin that supports FluidFS v6 is planned for

an upcoming release.

System Functionality The Dell Storage Manager client might lose connection to the Data Collector if it has been

up and running for a period of time. If a connection loss occurs, the following error is

generated:

Unable to obtain Jdbc connection from DataSource.

Workaround: Apply the Microsoft x, which can be downloaded from http://

support.microsoft.com/kb/2577795

System Functionality Certain Internet Explorer versions (for example, IE 11.0.9600 running on Windows 2008 R2)

cannot retrieve MIB les from the management FTP.

System Functionality If the rmware update stalls at 0% and other management operations are not available,

contact Dell Technical Support and reference KB SLN302683.

8Dell FluidFS Version 6.0 Release Notes

Area Description

System Functionality During a controller reboot, errors similar to Internal hard error occurred might

display on the Dell Storage Manager client. These errors can be ignored and should not

display again after all the controllers are available.

System Management Clusterization cannot be performed if IPv6 multicast packets are not passed through the

switch on the interconnect network.

System Management The Directory Quota Edit Rule online help page is missing. If you click Help on that page,

an error similar to Help Not Found is generated. See the Dell Storage Manager

Administrator’s Guide, which contains the same help information.

Troubleshooting General diagnostics summary les larger than 200 MB might not transfer using

SupportAssist and might need to be downloaded from the FluidFS cluster.

Contacting Dell

Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some

services might not be available in your area. To contact Dell for sales, technical support, or customer service issues, go to dell.com/

support.

Dell FluidFS Version 6.0 Release Notes 9