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10g RAC using SAN for storage
comp.databases.oracle.misc comp.databases.oracle.misc
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#41
 
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Re: 10g RAC using SAN for storage -
09-17-2008
, 10:08 PM
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When you state "Two double port NIC cards and two dual channel HBAs" ...... do you mean in total? (ie, 1 double-port NIC and 1 dual- channel HBA per node?) Also, for a completely prototype/testing/learning effort, what are the drawbacks to using a single-channel HBA per node? |
With the h/w above, you have no single point of failure.
#42
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On Sep 16, 6:10 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 15, 4:52 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 12, 9:29 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 12, 9:35 am, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: I am testing a 2 node RAC setup and want to try using a SAN for the dedicated storage (instead of a dedicated local storage disk array located within the same frame). Are there any "gotchas" that I should be aware of when using the SAN for storage as opposed to a typical storage array? Thanks! How did you use "dedicated local storage disk" and make it shared everything? You've said nothing of CFS or ASM or RAW. Why? The biggest potential issue with a SAN is labeling the disks used for the voting disk and OCR so that they are mounted in the correct order by the O/S. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks for the reply. I plan to use ASM over raw devices. (Again, this is purely for test/ learning, not a production application.) Please correct me if I'm wrong, but I'm assuming that I'll need HBAs for both nodes to connect to the same LUNs on the SAN? (There's no way to do it without the HBA is there?) Thanks. Not with a SAN unless you have an antique with fibre protocol over copper and can find drivers for it. Another possibility is to use iSCSI drivers. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks again for the reply. I will proceed with acquiring HBAs for each node. A related question if I may: Why would one require a single-channel Vs. dual-channel HBA in each node? Thanks again! Dual channel cards are good for bonding to obtain higher bandwidth. I like to have two cards, bonded, so that if one card fails it does not become a single point of failure. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks again. For a prototype effort though, I could proceed with single channel HBAs on each node, correct? One additional question, if the nodes have multiple NIC cards, would they serve as the "dedicated high-speed interconnect" that rac requires? Thanks! You should have a minimum of four interfaces. Two double port NIC cards and two dual channel HBAs. Again, bond so that you have two paths to public, two paths for cache fusion and two paths for storage (HBA). -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org When you state "Two double port NIC cards and two dual channel HBAs" ...... do you mean in total? (ie, 1 double-port NIC and 1 dual- channel HBA per node?) Also, for a completely prototype/testing/learning effort, what are the drawbacks to using a single-channel HBA per node? Thanks again!!!!! (section 2.1.4 of OracleŽ Database High Availability Best Practices is the only applicable search result reference to "HBA" in the online documentation that I found.) |
plus TWO single or dual port HBA cards.
--
Daniel A. Morgan
Oracle Ace Director & Instructor
University of Washington
damorgan@x.washington.edu (replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org
#43
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On Sep 16, 6:10 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 15, 4:52 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 12, 9:29 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 12, 9:35 am, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: I am testing a 2 node RAC setup and want to try using a SAN for the dedicated storage (instead of a dedicated local storage disk array located within the same frame). Are there any "gotchas" that I should be aware of when using the SAN for storage as opposed to a typical storage array? Thanks! How did you use "dedicated local storage disk" and make it shared everything? You've said nothing of CFS or ASM or RAW. Why? The biggest potential issue with a SAN is labeling the disks used for the voting disk and OCR so that they are mounted in the correct order by the O/S. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks for the reply. I plan to use ASM over raw devices. (Again, this is purely for test/ learning, not a production application.) Please correct me if I'm wrong, but I'm assuming that I'll need HBAs for both nodes to connect to the same LUNs on the SAN? (There's no way to do it without the HBA is there?) Thanks. Not with a SAN unless you have an antique with fibre protocol over copper and can find drivers for it. Another possibility is to use iSCSI drivers. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks again for the reply. I will proceed with acquiring HBAs for each node. A related question if I may: Why would one require a single-channel Vs. dual-channel HBA in each node? Thanks again! Dual channel cards are good for bonding to obtain higher bandwidth. I like to have two cards, bonded, so that if one card fails it does not become a single point of failure. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks again. For a prototype effort though, I could proceed with single channel HBAs on each node, correct? One additional question, if the nodes have multiple NIC cards, would they serve as the "dedicated high-speed interconnect" that rac requires? Thanks! You should have a minimum of four interfaces. Two double port NIC cards and two dual channel HBAs. Again, bond so that you have two paths to public, two paths for cache fusion and two paths for storage (HBA). -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org When you state "Two double port NIC cards and two dual channel HBAs" ...... do you mean in total? (ie, 1 double-port NIC and 1 dual- channel HBA per node?) Also, for a completely prototype/testing/learning effort, what are the drawbacks to using a single-channel HBA per node? Thanks again!!!!! (section 2.1.4 of OracleŽ Database High Availability Best Practices is the only applicable search result reference to "HBA" in the online documentation that I found.) |
plus TWO single or dual port HBA cards.
--
Daniel A. Morgan
Oracle Ace Director & Instructor
University of Washington
damorgan@x.washington.edu (replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org
#44
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On Sep 16, 6:10 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 15, 4:52 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 12, 9:29 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 12, 9:35 am, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: I am testing a 2 node RAC setup and want to try using a SAN for the dedicated storage (instead of a dedicated local storage disk array located within the same frame). Are there any "gotchas" that I should be aware of when using the SAN for storage as opposed to a typical storage array? Thanks! How did you use "dedicated local storage disk" and make it shared everything? You've said nothing of CFS or ASM or RAW. Why? The biggest potential issue with a SAN is labeling the disks used for the voting disk and OCR so that they are mounted in the correct order by the O/S. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks for the reply. I plan to use ASM over raw devices. (Again, this is purely for test/ learning, not a production application.) Please correct me if I'm wrong, but I'm assuming that I'll need HBAs for both nodes to connect to the same LUNs on the SAN? (There's no way to do it without the HBA is there?) Thanks. Not with a SAN unless you have an antique with fibre protocol over copper and can find drivers for it. Another possibility is to use iSCSI drivers. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks again for the reply. I will proceed with acquiring HBAs for each node. A related question if I may: Why would one require a single-channel Vs. dual-channel HBA in each node? Thanks again! Dual channel cards are good for bonding to obtain higher bandwidth. I like to have two cards, bonded, so that if one card fails it does not become a single point of failure. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks again. For a prototype effort though, I could proceed with single channel HBAs on each node, correct? One additional question, if the nodes have multiple NIC cards, would they serve as the "dedicated high-speed interconnect" that rac requires? Thanks! You should have a minimum of four interfaces. Two double port NIC cards and two dual channel HBAs. Again, bond so that you have two paths to public, two paths for cache fusion and two paths for storage (HBA). -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org When you state "Two double port NIC cards and two dual channel HBAs" ...... do you mean in total? (ie, 1 double-port NIC and 1 dual- channel HBA per node?) Also, for a completely prototype/testing/learning effort, what are the drawbacks to using a single-channel HBA per node? Thanks again!!!!! (section 2.1.4 of OracleŽ Database High Availability Best Practices is the only applicable search result reference to "HBA" in the online documentation that I found.) |
plus TWO single or dual port HBA cards.
--
Daniel A. Morgan
Oracle Ace Director & Instructor
University of Washington
damorgan@x.washington.edu (replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org
#45
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On Sep 16, 6:10 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 15, 4:52 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 12, 9:29 pm, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: On Sep 12, 9:35 am, DA Morgan <damor... (AT) psoug (DOT) org> wrote: macdba321 wrote: I am testing a 2 node RAC setup and want to try using a SAN for the dedicated storage (instead of a dedicated local storage disk array located within the same frame). Are there any "gotchas" that I should be aware of when using the SAN for storage as opposed to a typical storage array? Thanks! How did you use "dedicated local storage disk" and make it shared everything? You've said nothing of CFS or ASM or RAW. Why? The biggest potential issue with a SAN is labeling the disks used for the voting disk and OCR so that they are mounted in the correct order by the O/S. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks for the reply. I plan to use ASM over raw devices. (Again, this is purely for test/ learning, not a production application.) Please correct me if I'm wrong, but I'm assuming that I'll need HBAs for both nodes to connect to the same LUNs on the SAN? (There's no way to do it without the HBA is there?) Thanks. Not with a SAN unless you have an antique with fibre protocol over copper and can find drivers for it. Another possibility is to use iSCSI drivers. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks again for the reply. I will proceed with acquiring HBAs for each node. A related question if I may: Why would one require a single-channel Vs. dual-channel HBA in each node? Thanks again! Dual channel cards are good for bonding to obtain higher bandwidth. I like to have two cards, bonded, so that if one card fails it does not become a single point of failure. -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org Thanks again. For a prototype effort though, I could proceed with single channel HBAs on each node, correct? One additional question, if the nodes have multiple NIC cards, would they serve as the "dedicated high-speed interconnect" that rac requires? Thanks! You should have a minimum of four interfaces. Two double port NIC cards and two dual channel HBAs. Again, bond so that you have two paths to public, two paths for cache fusion and two paths for storage (HBA). -- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damor...@x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Groupwww.psoug.org When you state "Two double port NIC cards and two dual channel HBAs" ...... do you mean in total? (ie, 1 double-port NIC and 1 dual- channel HBA per node?) Also, for a completely prototype/testing/learning effort, what are the drawbacks to using a single-channel HBA per node? Thanks again!!!!! (section 2.1.4 of OracleŽ Database High Availability Best Practices is the only applicable search result reference to "HBA" in the online documentation that I found.) |
plus TWO single or dual port HBA cards.
--
Daniel A. Morgan
Oracle Ace Director & Instructor
University of Washington
damorgan@x.washington.edu (replace x with u to respond)
Puget Sound Oracle Users Group
www.psoug.org
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